Akishev, Z., S. Aktayeva, Y. Shamsiyeva, A. Tursunbekova, B. Kalemshariv, T. Tultabayeva, and B. Khassenov. “Milk-Clotting Activity of Recombinant Bovine and Camel Chymosin for cow’s, goat’s and ewes’ Milk”. Eurasian Journal of Applied Biotechnology, no. 2, July 2023, pp. 61-68, doi:10.11134/btp.2.2023.8.