Zuberi, R., and M. Rashid. “Pharmacognostical Studies for Standardisation of a Medicinal Spice, the Fruit of Illicium Verum Hook. F.”. PharmaTutor, Vol. 4, no. 8, Aug. 2016, pp. 36-41, http://www.pharmatutorjournal.com/index.php/pt/article/view/373.