Shareef, Huma, et al. “Comparative Analgesic Activity of Selected Medicinal Plants from Pakistan: Analgesics from Plants”. Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences, vol. 56, no. 3, Sept. 2019, pp. 57–67, https://www.ppaspk.org/index.php/PPAS-B/article/view/111.