Chotibul Umam, Nurul Aini, & Griselda Gian Heris Herdina. (2023). How Professional English Teachers Motivate Their Students: A Multiple Case Study. Proceeding International Conference on Religion, Science and Education, 2, 295–307. Retrieved from https://sunankalijaga.org/prosiding/index.php/icrse/article/view/928