1. Abd-Allah, S. (2014). Application of some crossbreeding and feeding programs to improve the productive performance in Baladi goats. Unpublished Ph.D. Thesis, Fac. of Agric., Al-Azhar Univ.
http://thesis.mandumah.com/Record/277060
2. Abd-Allah S, Mohamed MI, Abd-Elrahman HH, EL-Kady RI (2016) Assessment of some productive performance of Boer goats and their crosses with Egyptian Baladi goats. Int J ChemTech Res 9(12):259–265 ISSN: 0974-4290
3. Abd-Allah S, Salama R, Mohamed MI, Mabrouk M, El-Kady RI, Kadry AI, Ahmed SM (2015) A comparative study on reproductive and productive performance of Boer and Baladi goats raised under similar environmental conditions in Egypt. Int J ChemTech Res 8(9):225–236 (ISSN: 0974-4290)
4. Bembridge TJ (1984) A systems approach study of agricultural development problems in Transkei. PhD Thesis, University of Stellenbosch, South Africa
5. CAPMAS (2018) Central Agency for Public Mobilization and Statistics, Egypt
https://www.capmas.gov.eg/Pages/StaticPages.aspx?page_id=5035