Kliment, Angelov, and Šešo Igor. “668.ENERGETIC AND ECONOMIC ANALYSIS FOR UTILIZATION OF BIOGAS FROM PIG FARMS IN NORTH MACEDONIA”. MECHANICAL ENGINEERING – SCIENTIFIC JOURNAL 41, no. 2 (December 28, 2023): 89–98. Accessed February 1, 2026. https://www.mesj.ukim.edu.mk/journals/article/view/104.