DWI SASONGKO, A. and HARIMURTI, R. (2019) “PENERAPAN SELF-DIRECTED LEARNING BERBASIS GOOGLE CLASSROOM UNTUK MENINGKATKAN HASIL BELAJAR DI SMK NEGERI 2 SURABAYA”, IT-Edu : Jurnal Information Technology and Education, 4(1). doi: 10.26740/it-edu.v4i1.29077.