Muhammad Khairunnasri, Purna Hijjah, Sri Herawati, Septi Andriana, Selamet Riadi Jaelani. The Effectiveness of English Organization (ESC) to Improve Speaking Skill of Students at Hamzanwadi University. Pendekar [Internet]. 2023Jul.24 [cited 2024Jul.5];1(4):238-44. Available from: https://journal.politeknik-pratama.ac.id/index.php/Pendekar/article/view/335