Production and diagnosis of Vitamin B12 from Lactobacillus reuteri LBIQ1 and its application as a therapeutic food supplement: Produksi dan diagnosis Vitamin B12 dari Lactobacillus reuteri LBIQ1 dan aplikasinya sebagai suplemen makanan terapeutik. Indonesian Journal on Health Science and Medicine, v. 2, n. 1, p. 10.21070/ijhsm.v2i1.122, 30 Mar.2025.