Siong, Tjoeng Sin. “Improving Academic Supervision through Program Evaluation Using the CIPP Model at Private High School in Bogor City”. Eduvest - Journal of Universal Studies 2, no. 7 (July 1, 2022): 1.220–1.236. Accessed June 30, 2025. https://eduvest.greenvest.co.id/index.php/edv/article/view/500.