Luana Sasabone, Sunarlia Limbong, Fien Pongpalilu, Dewi Nidia Soepriadi, and Yuriatson Jubhari. “Utilizing WhatsApp As An Educational Technology Tool In Improving Students’ Speaking For ESP Instruction”. EDULEC : Education, Language, and Culture Journal 2, no. 2 (August 4, 2022): 170–179. Accessed October 11, 2026. https://jurnal-eureka.com/index.php/edulecj/article/view/66.