Firdaus, M. D., Putraga, H., Butar-Butar, A. J. R. and Hidayat, M. (2022) “Effectiveness Test of iOptron Cube-G Telescope for Hilal Observation”, AL - AFAQ : Jurnal Ilmu Falak dan Astronomi, 4(2), pp. 219–236. doi: 10.20414/afaq.v4i2.5341.