Azizah, Siti, and Budiwirman Budiwirman. 2025. “The Historical Site of Mbah Soero Coal Mine Pit Sawahlunto, West Sumatra, As a Learning Resource for Social Science Education”. LANGGAM: International Journal of Social Science Education, Art and Culture 4 (1), 13-20. https://doi.org/10.24036/langgam.v4i1.208.