Zarkasyi AH, Ayu S. The Role of Public Speaking Training to Build Self-Confidence For Class One Intensive Students of Darussalam Gontor Islamic Boarding School for Girls. EDUCAN [Internet]. 2018Aug.5 [cited 2025Dec.16];2(2):72-94. Available from: https://ejournal.unida.gontor.ac.id/index.php/educan/article/view/3264