I. SINGH, N. BANSAL, D. PATHAK, V. UPPAL, and A. GUPTA, “Fetal Leydig cells in buffalo testis: Light and electron microscopic study”, Indian J of Anim Sci, vol. 90, no. 4, pp. 553–556, Sep. 2020, doi: 10.56093/ijans.v90i4.104193.