VALDEHUEZA, Jefford Vinson. Efficacy of Innovated Four-Stroke Gasoline Engine Trainer: It’s Technical Enhancement to Grade 12 Senior HS Students. JPAIR Multidisciplinary Research, Philippines, v. 35, n. 1, p. 54–67, 2019. DOI: 10.7719/jpair.v35i1.649. Disponível em: https://philair.ph/index.php/jpair/article/view/649. Acesso em: 2 apr. 2025.