Comparison of Hb Levels Given Iron Supplements with and  Without Vitamin B12 to Anemia Female Industrial Workers in  Surakarta Residency Area, Pratiwi, Niken, Hutagaol Rutmauli,, Pahruddin Muhammad, Fauziah Erna,, Mallongi Anwar, and Palutturi Sukri , Pharmacognosy Journal, December 2023, Volume 15, Issue 6, p.1010-1015, (2023)