DWI SASONGKO, ANJAR, and RINA HARIMURTI. “PENERAPAN SELF-DIRECTED LEARNING BERBASIS GOOGLE CLASSROOM UNTUK MENINGKATKAN HASIL BELAJAR DI SMK NEGERI 2 SURABAYA”. IT-Edu : Jurnal Information Technology and Education 4, no. 1 (July 11, 2019). Accessed July 3, 2025. https://ejournal.unesa.ac.id/index.php/it-edu/article/view/29077.