Niku, Elpipres Muhammad, Bambang Budi Wiyono, Bambang Budi Wiyono, Nurul Ulfatin, and Maisyaaroh. 2023. “Quality Assurance in the Open University Service Online Learning Tutorial ”. JTP - Jurnal Teknologi Pendidikan 25 (3):610-18. https://doi.org/10.21009/jtp.v25i3.45724.