Saleh Mahmud SA, Ferdous T, Alam MM, Hossain MS, Shozib HB, Khalil F, et al. Para-Phenylenediamine (PPD) in commercially available Henna preparations in Bangladesh. Bioresearch Communications [Internet]. 2021 Dec. 26 [cited 2025 Sep. 12];8(1):1088-92. Available from: https://www.banglajol.info/index.php/BRC/article/view/57048