Sanchia Cleosha Viorina, Septi Handayani, Nisa Kartika Komara, Nawan N, Ina Arleny. Testing the Vitamin B12 Levels in Cassava Tapai. IJHET [Internet]. 2026 Jan. 24 [cited 2026 Mar. 27];4(5). Available from: https://afdifaljournal.com/journal/index.php/ijhet/article/view/503