Osman Idris Abker, A. (2013). Use of Factor Model to Study and Analyze the Secondary Education Situation in South Darfur State. test, 57(1), 30-43. doi: 10.21608/esju.2013.314344
Abdelgalal Osman Idris Abker. "Use of Factor Model to Study and Analyze the Secondary Education Situation in South Darfur State". test, 57, 1, 2013, 30-43. doi: 10.21608/esju.2013.314344
Osman Idris Abker, A. (2013). 'Use of Factor Model to Study and Analyze the Secondary Education Situation in South Darfur State', test, 57(1), pp. 30-43. doi: 10.21608/esju.2013.314344
Osman Idris Abker, A. Use of Factor Model to Study and Analyze the Secondary Education Situation in South Darfur State. test, 2013; 57(1): 30-43. doi: 10.21608/esju.2013.314344