Idris Mohammed, et al. “Assessment of Storage Containers Effect on Stability of Cannabis Metabolites in Urine Using Liquid Chromatography-Tandem Mass Spectrophotometry Technique”. International Journal of Medical Toxicology and Legal Medicine, vol. 27, no. 4, Oct. 2024, pp. 468-79, http://ijmtlm.org/index.php/journal/article/view/691.