Wibowo, Unggul Prasetyo, et al. “GEOLOGICAL APPROACH IN ORDER TO DISTINGUISH THE PREFERENCE SOURCE OF THE RAW MATERIAL FROM THE MEGALITHIC TOMBS IN EAST SUMBA, INDONESIA”. AMERTA, vol. 36, no. 2, Jan. 2024, pp. 101-14, https://ejournal.brin.go.id/amerta/article/view/3244.