N. Tesfalem, A. Tesfamariam, A. Okbaslasie, and K. Tesfay, “Physico-chemical Analysis of Groundwater Around Mai-Bela, Asmara, Eritrea”, ASRJETS-Journal, vol. 57, no. 1, pp. 161–186, Jul. 2019, Accessed: Oct. 09, 2025. [Online]. Available: https://www.asrjetsjournal.org/American_Scientific_Journal/article/view/4928