M. Al-Tahir, N. Ibrahim, A. Nouh, M. Al-Darmoun, and A. Alalem, “The Effect of Metformin on Vitamin B12 in Type 2 Diabetes Patients in Wadi Etba Region, Southern Libya”, waujpas, vol. 3, no. 2, pp. 116–119, Jul. 2025, doi: 10.63318/waujpasv3i2_14.