I. G. A. S. Andayani, I. Retnowati, B. Mariana, N. Ismillayli, A. Ekawanti, and R. D. Ayunda, “Optimization of Cryogenic Grinding as a Hair Sample Preparation Technique for Heavy Metal Concentration Analysis”, Bioscientist j. ilm. bosbiol., vol. 14, no. 2, pp. 706–714, Jun. 2026.