Siregar, Sheyla Silvia, Sintia Nursafitri, and Stanny Dewanty Rehatta. “The Mandarin Language Training for Business to Enhance Vocational Student Competitiveness in the Global Era”. Majalah Ilmiah UPI YPTK 32, no. 1 (June 30, 2025): 12–16. Accessed November 9, 2025. https://jmi-upiyptk.org/ojs/index.php/jmi/article/view/179.