سک العمله ما بين إبداع التصميم والتقنيات

المراجع: 

• Hansen, T. Firing Shrinkage. [Online]

• Lang, J. ‘The Technology of Celtic Iron Swords’ in Scott, B.G. and Cleere H. (eds.) The Craft of the Blacksmith.  Belfast: Ulster Museum Publications.  1987
• Coarse-grained correspondence-based ancient Sasanian coin classification by fusion of local features and sparse representation-based classifier Seyyedeh-Sahar & Mohamad Sourizaei & Mohammad Mahdi Dehshibi  & Reza Esmaeilzadeh Shateri 3 & Mohammad Reza Parsaei Published online: 2016  Springer Science+Business Media New York
• Yeoman, R.S., "A Guidebook of United States Coins," 26th Edition. Western Publishing Co., Racine, Wisconsin, 1973
• تصوير المعبود جوبيتر على العملة الرومانية خلال القرون الثلاثة الأولى الميدالية الباحثة / ماري راغب جرجس  ، مجلة الفنون والعمارة الإسلامية ، العدد الثالث
• https://www.chemistrylearner.com/electrum.html
• https://taxfreegold.co.uk/electrum.html
• http://nevada-outback-gems.com/mineral_information/Electrum_mineral_info.htm
• https://coinquest.com/cgi-bin/cq/coins.pl?coin=20187
• https://en.wikipedia.org/wiki/History_of_coins
• https://ar.wikipedia.org/wiki/%D8%AA%D8%A7%D8%B1%D9%8A%D8%AE_%D8%A7%D9%84%D9%86%D9%82%D9%88%D8%AF_%D8%A7%D9%84%D9%85%D8%B9%D8%AF%D9%86%D9%8A%D8%A9
• http://www.ancientresource.com/lots/holyland_artifacts/holy-land-biblical-coins/widows-mites.html
• https://londoncoin.com/2015/09/24/electrum-coins-werent-just-issued-early-on-ancients-today/
• https://minterrornews.com/news-1-30-07-doubling.html
• https://londoncoin.com/2015/09/24/electrum-coins-werent-just-issued-early-on-ancients-today/
• https://www.coinnews.net/2013/09/13/how-the-philadelphia-mint-makes-hubs-and-dies-to-produce-coins/
• https://www.ts3a.com/%D8%A7%D9%84%D8%B9%D9%85%D9%84%D8%A7%D8%AA-%D8%A7%D9%84%D9%85%D8%B9%D8%AF%D9%86%D9%8A%D8%A9/
• https://www.arageek.com/l/%D9%85%D8%A7-%D9%87%D9%88-%D8%B5%D9%83-%D8%A7%D9%84%D8%B9%D9%85%D9%84%D8%A7%D8%AA
• https://ar.wikipedia.org/wiki/%D9%82%D8%A7%D8%A6%D9%85%D8%A9_%D8%B9%D9%85%D9%84%D8%A7%D8%AA_%D9%85%D8%B5%D8%B1_%D8%A7%D9%84%D9%85%D8%B9%D8%AF%D9%86%D9%8A%D8%A9
• https://colnect.com/ar/coins/list/currency/1684-%D9%85%D9%8A%D9%84%D9%8A%D9%85_%D8%A7%D9%84%D9%85%D8%B5%D8%B1%D9%8A%D8%A9/distribution/1-%D8%B9%D9%85%D9%84%D8%A7%D8%AA_%D9%85%D8%AA%D8%AF%D8%A7%D9%88%D9%84%D8%A9
• https://ar.wikipedia.org/wiki/%D9%86%D9%82%D9%88%D8%AF_%D9%85%D8%B9%D8%AF%D9%86%D9%8A%D8%A9
• https://www.almasryalyoum.com/news/details/1359511
• https://mawdoo3.com/%D9%85%D9%86_%D9%85%D8%A7%D8%B0%D8%A7_%D8%AA%D8%B5%D9%86%D8%B9_%D8%A7%D9%84%D9%86%D9%82%D9%88%D8%AF
• https://www.elbalad.news/3882410
• http://primaltrek.com/chinesecoins.html
• https://www.jagranjosh.com/general-knowledge/the-history-of-the-indian-currency-notes-and-its-evolution-1472803179-1
• https://www.ancientpages.com/2018/03/21/ancient-round-coins-were-invented-to-prevent-fraud/
• https://www.indiamart.com/proddetail/islamic-very-rare-kalima-coin-19640067448.html
• https://www.newsletter.co.uk/news/author-claims-coin-contains-face-real-jesus-christ-860793
• http://www.bbc.co.uk/ahistoryoftheworld/objects/04_a5CdfSfSer1EnSzbGDw
• https://colnect.com/ar/coins/countries
• https://www.scientificamerican.com/arabic/articles/bring-science-home/shine-bright-like-a-penny/
• https://coinweek.com/ancient-coins/ancient-electrum-coins/
• http://www.ancientresource.com/lots/coins_roman1.html
• https://www.google.com/search?q=ancient+coin+with+one+side&tbm=isch
• https://www.google.com/search?q=ancient+coin+with+one+side+print&tbm=isch
• https://coinquest.com/cgi-bin/cq/coins.pl?coin=20187
• https://www.google.com/search?q=coin+one+face
• https://www.chemistrylearner.com/electrum.html
• https://en.wikipedia.org/wiki/History_of_coins
• https://www.ancient.eu/article/1383/the-gold-trade-of-ancient--medieval-west-africa/
• https://ia802809.us.archive.org/6/items/catalogueofcolle00sot_8vv/catalogueofcolle00sot_8vv.pdf
• https://archive.org/details/catalogueofcolle00sot_8vv/page/76/mode/2up
• https://archive.org/details/catalogueofcolle00sot_8vv/page/76/mode/2up
• https://archive.org/details/catalogueofcolle00sot_8vv/page/47/mode/2up
• https://londoncoin.com/2015/09/24/electrum-coins-werent-just-issued-early-on-ancients-today/
• https://coinweek.com/ancient-coins/ancient-electrum-coins/
• http://www.thehistoryblog.com/archives/53228