| 1. | Vegetation Characteristics and Environmental Gradients of Musa Mountain in Saint Katherine Protectorate, South Sinai, Egypt | |
| Pages 1-14 | ||
| asmaa A. zaghloul; Om Mohamed A. Khafagi; Mohamed M. Moursy; Hany A. Marghany | ||
| 2. | Clean Production Strategy in the Economics of Sustainable Development | |
| Pages 1-19 | ||
| Helmy Ahmed Mustafa Al-Qamati | ||
| 3. | The Reality of Business Incubators in Supporting Entrepreneurship for Young People in the Arab World in Light of the Challenges of the Business Environment | |
| Pages 1-12 | ||
| Osama Abd Ellatief; Helmy Al-Qamati | ||
