Ullah, Sohaib, Xin Liu, and Marwa Zaib. “Improving Science Learning in Grade 8 through Ipsative Assessment: Insights from Action Research”. Pedagogy and Psychology of Sport 29 (February 5, 2026): 68703. Accessed February 7, 2026. https://apcz.umk.pl/PPS/article/view/68703.