Dwiyanti, S. P., D. A. H. Irawan, Z. A. Abbas, M. R. Utami, and L. Nurfadhila. “Validation of Drug Compound Analysis Methods in Biological Samples (Urine)”. Journal of Pharmaceutical and Sciences, vol. 6, no. 2, June 2023, pp. 885-91, doi:10.36490/journal-jps.com.v6i2.165.