Mahardani, I., and N. Mariana. “PENCARIAN GURU LES PRIVAT DI SEMARANG BERBASIS WEB SEARCH PRIVATE TUTORS WEB-BASEDIN SEMARANG”. Information Technology and Telematics, Vol. 8, no. 2, Mar. 2019, https://www.unisbank.ac.id/ojs/index.php/fti3/article/view/6533.