See Soo Yin and Arifuddin Abdullah (2021) “LEARNERS’ ATTITUDES, PERCEPTIONS, AND EFFORTS TOWARDS MANDARIN AS A FOREIGN LANGUAGE COURSE”, Researchers World - International Refereed Social Sciences Journal, 5(4), pp. 38–47. Available at: https://www.researchersworld.com/index.php/rworld/article/view/825 (Accessed: 5 August 2025).