Calderon ALR, Mandabob HK, Maroto JMG, Syting CJO. Exploring Language Proficiency Enhancement Trainings of Call Center Agents: Unveiling BPO Trainer Strategies from Agents’ Standpoints . IJCER [Internet]. 2025 Mar. 30 [cited 2025 Apr. 29];3(3):147-62. Available from: https://journal.jcopublishing.com/index.php/ijcer/article/view/354