1.
Sarjana K, Kertiyani NMI, Hayati L, Baidowi B. Developing instructional props to reinvent the area of parallelogram and triangle in online learning. BetaJTM [Internet]. 2023 May 31 [cited 2026 May 25];16(1):1-13. Available from: http://mail.jurnalbeta.ac.id/index.php/betaJTM/article/view/555