H. W. Chua, H. L. Lee, S. Omar, M. Tohleheng, and S. M. Chin, “Malaysian Non-native Chinese Students’ Challenges and Learning Strategies in Chinese Characters Learning”, EJOSS, vol. 8, no. 1, pp. 67–82, Jun. 2022, doi: 10.37134/ejoss.vol8.1.7.2022.