Nugroho, Arya Setya, et al. “ABDROID-BASED ‘PAHINDHAIS’ MEDIA DEVELOPMENT FOR FOURTH-GRADE ELEMENTARY SCHOOL STUDENT”. Journal Universitas Muhammadiyah Gresik Engineering, Social Science, and Health International Conference (UMGESHIC), vol. 1, no. 2, Dec. 2021, pp. 303-12, doi:10.30587/umgeshic.v1i2.3397.