EL-SHERRY, M., EL-NAGGAR, M., NASSAR, S. M. (1980). 'EXPERIMENTAL STUDY OF SUMMER STRESS IN RABBIT VI- THE QUANTITATIVE AND QUALITATIVE EFFECT OF HORMONAL ASSOCIATION INJECTION ON SPERMATOGENIC CELL CYCLE OF STRESSED RABBIT.', Assiut Veterinary Medical Journal, 7.1(13.14), pp. 81-95. doi: 10.21608/avmj.1980.192928