Bolyssov, T.K., Z.K. Zhanybayeva, B.S. Yessengeldin, and M.K. Tuleubayeva. “Possibilities of Using Biogas in Agriculture ”. BUKETOV BUSINESS REVIEW 96, no. 4 (December 30, 2019): 22–28. Accessed February 4, 2026. https://bbr.buketov.edu.kz/economy-vestnik/article/view/293.