Komilov, O.S., M.Z. Sharipov, L.I. Tilloev, and J.A. Majidov. 2018. “AUTONOMOUS BIOGAS INSTALLATION WITH SOLAR HEATING SYSTEM”. Eurasian Physical Technical Journal 15 (1(29):82-85. https://phtj.buketov.edu.kz/EPTJ/article/view/508.