Theresia L. Toruan, Mutia Devi, Theodorus, and A. M. Rivai, “Relationship between 25-Hydroxy Vitamin D Levels and Type of Morbus Hansen”, Bioscmed, vol. 5, no. 9, pp. 883–889, Sep. 2021, doi: 10.32539/bsm.v5i9.407.