Prastyo, I., Nurkhanif, M., Ni'am, M., Apriana, A., & Zamakhsyari, L.
(2022).
Digistar 6-Based Planetarium as an Educational Media for Learning about the Sun Position Using a Horizontal Coordinate System.
Physics Education Research Journal, 4(1), 1-6.
doi:
https://doi.org/10.21580/perj.2022.4.1.11013