AmirgaliyevYedilkhan , Kunelbayev Murat, Amirgaliyev Beіbut, Daulbayev Salauat, Kozbakova Ainur, Auelbekov Omirlan and Katayev Nazbek. 2020. “Study Of The Process Of Anaerobic Digestion Of Biogas From Organic Waste In A Bioenergy Plant”. International Journal of Advanced Science and Technology 29 (11s), 163 -72. http://sersc.org/journals/index.php/IJAST/article/view/19963.