R. F. Mushaddaq University of Indonesia, Jl. Lingkar, Pondok Cina, Beji, Depok City, West Java, 16424, Indonesia
D. S. K. Sihono University of Indonesia, Jl. Lingkar, Pondok Cina, Beji, Depok City, West Java, 16424, Indonesia Indonesia
P. Prajitno University of Indonesia, Jl. Lingkar, Pondok Cina, Beji, Depok City, West Java, 16424, Indonesia Indonesia