المؤلفون: Soliman, Ibrahim, Gad, Osman, Gaber, Mohamed

المصدر: Zagazig University, Department of Agricultural Economics, Journal Articles.

الإتاحة: https://ideas.repec.org/p/ags/zudaja/211251.html

المؤلفون: Soliman, Ibrahim

المصدر: Zagazig University, Department of Agricultural Economics, Conference Papers.

الإتاحة: https://ideas.repec.org/p/ags/zudacp/236444.html

المؤلفون: Soliman, Ibrahim, Fahiem Sharaf, Mohamed, Saleem, Ahmed

المصدر: Zagazig University, Department of Agricultural Economics, Conference Papers.

الإتاحة: https://ideas.repec.org/p/ags/zudacp/234934.html

المؤلفون: Rodney Wilson

المصدر: King Abdulaziz University, Islamic Economics Institute., Journal of King Abdulaziz University: Islamic Economics. 29(1):83-87

الإتاحة: https://ideas.repec.org/a/abd/kauiea/v29y2016i1no6p83-87.html

المؤلفون: Rafic Yunus Al-Masri

المصدر: King Abdulaziz University, Islamic Economics Institute., Journal of King Abdulaziz University: Islamic Economics. 21(1):63-68

الإتاحة: https://ideas.repec.org/a/abd/kauiea/v21y2008i1no8p63-68.html

المؤلفون: Patrice Ballester

المصدر: HAL, Post-Print.

الإتاحة: https://ideas.repec.org/p/hal/journl/hal-03834622.html

المؤلفون: P. Ballester

المصدر: HAL, Post-Print.

الإتاحة: https://ideas.repec.org/p/hal/journl/hal-03835722.html