“The Chronological Development and Syntactic Functions of the Copular Verb 是 (Shì) in the Chinese Language” (2025) American Journal of Language, Literacy and Learning in STEM Education (2993-2769), 3(10), pp. 84–87. Available at: https://www.grnjournal.us.e-scholar.org/index.php/STEM/article/view/8432 (Accessed: 27 January 2026).