Artuti, Emy, Uminastuti, Pantur Pandiangan, and Muhammad Hamdani. “STUDENTS ’ABILITY TO SOLVE RANDOM CHANGE PROBLEMS AND DISTRIBUTION OF OPPORTUNITIES IN THE ERA OF COVID-19”. Jurnal Pendidikan 22, no. 1 (June 28, 2021): 12–24. Accessed December 22, 2024. https://e-journal.upr.ac.id/index.php/JPN/article/view/2688.