Rila Fauziah, and Zefriyenni Zefriyenni. 2026. “Analysis of Oligopsony Market Structure and Budget Allocation Efficiency for Educational Infrastructure Procurement at the Education Office of Bukittinggi City”. Jurnal Multidisiplin Sahombu 6 (03):1150-56. https://ejournal.seaninstitute.or.id/index.php/JMS/article/view/9009.