Hajra, Bibi, et al. “EVALUATION OF TOXIC HEAVY METALS IN AYURVEDIC SYRUPS SOLD IN LOCAL MARKETS OF HAZARA, PAKISTAN”. Journal of Ayub Medical College Abbottabad, vol. 27, no. 1, Mar. 2015, pp. 183-86, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/1135.