DIPTI RANJAN ROUT. PEN MODEL OF TEACHING LEARNING: NEEDS AND SIGNIFICANCE IN PHYSICAL SCIENCE. International Educational Journal of Science and Engineering, [S. l.], v. 7, n. 3, 2024. Disponível em: https://iejse.com/journals/index.php/iejse/article/view/107. Acesso em: 6 jul. 2024.