Wojcik, Waldemar. “BUILDING A MATHEMATICAL MODEL OF THE BIOGAS COMBUSTION PROCESS”. Journal of Problems in Computer Science and Information Technologies 1, no. 1 (April 3, 2023). Accessed November 22, 2024. https://jpcsip.kaznu.kz/index.php/kaznu/article/view/JPCSIT.2023.v1.i1.02.