Danuphong Cheewinwilaiporn, Nattaya Singsutin, & Saowakon chantamat. (2022). The Factors that Affect in Using Mandarin Chinese Based on the 21st Century Learning Skills of the Fourth-year Students from the Bachelor of Arts Program in Chinese Language, Chiang Rai Rajabhat University. Fa Nuea Journal, 12(2), 75–90. retrieved from https://so01.tci-thaijo.org/index.php/FaNJ/article/view/256466