Herdiwijaya, Dhani, Mitra Djamal, dan Hendra Gunawan. 2012. “Design of Mobile and Robotic Observing System With Special Telescope Baffle for Searching Young Lunar Crescent”. Jurnal Otomasi Kontrol Dan Instrumentasi 4 (1):1. https://doi.org/10.5614/joki.2012.4.1.1.