“MICROBIAL, STEROIDS AND HEAVY METALS  CONTAMINATION AND ANTIMICROBIAL RESISTANCE OF BACTERIAL ISOLATES IN THAI HERBAL PRODUCTS: MICROBES, STEROIDS AND HEAVY METALS IN HERBAL MEDICINE ”. 2023. The Southeast Asian Journal of Tropical Medicine and Public Health 54 (5): 244-64. https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/865.