GUPTA, A. “STUDIES ON CELLS OF PROXIMAL PARSDISTALIS OF PITUITARY GLAND IN RELATION TO GONADAL CYCLE IN FRESHWATER ANABAS TESTUDINEUS”. UTTAR PRADESH JOURNAL OF ZOOLOGY, vol. 27, no. 1, Feb. 2007, pp. 107-9, https://www.mbimph.com/index.php/UPJOZ/article/view/681.