Abugharsa M, Abdulshahed AM. PhET supported instruction and achievement in geometrical optics among Libyan ninth grade students. jsras [انترنت]. 20 أكتوبر، 2026 [وثق 8 نوفمبر، 2026];3(2):197-202. موجود في: https://jsras.rcc.edu.ly/index.php/ojs/article/view/135