Timbola, G., Mursalin and Odja, A.H. (2023) “Developing Differentiated Learning Devices to Heighten Student Learning Outcome on Light Concepts at SMP Negeri 1 Kwandang”, Journal of Humanities and Social Sciences Studies, 5(6), pp. 65–71. doi:10.32996/jhsss.2023.5.6.7.