Hastuti, Sri, Kundharu Saddhono, Sri Marmoah, Endang Rahmawati, Dian Uswatun Hasanah, Farida Yufarlina Rosita, Elen Inderasari, et al. “The Effectiveness of Applying E-Book in Teaching Indonesian to Speakers of Other Languages (TISOL) in Supporting Foreign Students’ Self-Learning in Indonesia”. International Journal of Engineering and Technology 7, no. 3.4 (June 25, 2018): 277–279. Accessed April 18, 2025. https://sciencepubco.com/index.php/IJET/article/view/20118.