Talens, Cynthia, Mei-Hung Chiu, and Fortunato III Sevilla. “Development of a Two-Tiered Diagnostic Test to Assess learners’ Understanding of the Particulate Nature of Gases”. KIMIKA: The Journal of the Kapisanang Kimika ng Pilipinas 35, no. 1 (December 1, 2024): 1–16. Accessed October 15, 2026. https://kimika.pfcs.org.ph/index.php/kimika/article/view/130.