1.
Chomphuchai K. Errors and Characteristics of Chinese Preposition “Zai”  Acquisition by Thai Learners. JSINO [internet]. 2025 Dec. 12 [cited 2026 Mar. 7];19(2):200-14. available from: https://so16.tci-thaijo.org/index.php/JSINO/article/view/3072