Ch., Battulga, and Bayartuul B. “Монгол хэлийг хоёрдогч хэл болгон заан сургаж ирсэн арга туршлага, цаашдын төлөв: The Previous Methodology and Experience on Teaching the Mongolian As a Second Language and Its Perspective”. Mongolian Journal of Foreign Languages and Cultures 25, no. 547 (February 10, 2023): 42–49. Accessed January 11, 2025. https://journal.num.edu.mn/JOFLAC/article/view/1835.