Yuliana, Yuliana, et al. “Analisis Hasil Perkuliahan E-Learning Elektronika Menggunakan Model Statistik Analisis Ragam DuaAarah (Two Way Analysis of Variance) Di Jurusan Fisika, Universitas Negeri Jakarta”. Joint Prosiding IPS Dan Seminar Nasional Fisika, vol. 2, no. 1, Oct. 2013, pp. 123-8, https://journal.unj.ac.id/unj/index.php/prosidingsnf/article/view/6137.