Prasetyo, Ari Djanuar, Rina Ekawati, Farrah Farrah, and Suesilowati Suesilowati. 2023. “Analisis Pengukuran SROI Pada Program Perpustakaan Digital TJSL PLN UID Sumut”. Attractive : Innovative Education Journal 5 (2):815-24. https://doi.org/10.51278/aj.v5i2.754.