Muhamad Fadzil, N., and F. Fadhil. “MEANINGFUL LEARNING THROUGH GAMES ‘CARDBOARD CHALLENGE’ GAME (60 - 65)”. Jurnal Pendidikan Bitara UPSI, vol. 9, no. 2, May 2019, pp. 60-65, https://ejournal.upsi.edu.my/index.php/JPB/article/view/2475.