Putri Septi K, D. .; Phanata, S. .; Indah Setyo Rahayu, K. .; Prasetyo Adi, D.; Avenida, Q. .; Nastiti Sandyaningrum, J. . Proficiency Test Training for Mandarin Learners in Surakarta. KSS 2022, 7, 1–9.