Syofa, Sri Djuniati, and Horas Saut MM. “Analisis Kinerja Pelayanan Gardu Tol Pekanbaru-Dumai”. SAINSTEK 12, no. 1 (June 29, 2024): 53–58. Accessed February 24, 2026. https://ejournal.sttp-yds.ac.id/index.php/js/article/view/197.