(2021). POSITIVE SOLUTIONS OF HIGHER ORDER NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS WITH NONLOCAL INITIAL CONDITIONS AT RESONANCE LEI HU AND SHUQIN ZHANG. EKB Journal Management System, 12(1), 25-34. doi: 10.21608/jfca.2021.308737
. "POSITIVE SOLUTIONS OF HIGHER ORDER NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS WITH NONLOCAL INITIAL CONDITIONS AT RESONANCE LEI HU AND SHUQIN ZHANG". EKB Journal Management System, 12, 1, 2021, 25-34. doi: 10.21608/jfca.2021.308737
(2021). 'POSITIVE SOLUTIONS OF HIGHER ORDER NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS WITH NONLOCAL INITIAL CONDITIONS AT RESONANCE LEI HU AND SHUQIN ZHANG', EKB Journal Management System, 12(1), pp. 25-34. doi: 10.21608/jfca.2021.308737
POSITIVE SOLUTIONS OF HIGHER ORDER NONLINEAR FRACTIONAL DIFFERENTIAL EQUATIONS WITH NONLOCAL INITIAL CONDITIONS AT RESONANCE LEI HU AND SHUQIN ZHANG. EKB Journal Management System, 2021; 12(1): 25-34. doi: 10.21608/jfca.2021.308737