Bellino S, Shiernest Danielle L. Overa, Leynie Boy G. Bellino. Teaching effectiveness and students’ academic performance of Piñan National High School, Piñan District, Schools Division of Zamboanga del Norte: Teaching effectiveness and students’ academic performance of Piñan National High School, Piñan District, Schools Division of Zamboanga del Norte . dwijmh [Internet]. 2025 Jun. 16 [cited 2026 May 1];4(2):1550-7. Available from: https://www.dwijmh.org/index.php/dwijmh/article/view/134