Hannan, Abdul, et al. “PROPOLIS AS AN ANTIBACTERIAL AGENT AGAINST CLINICAL ISOLATES OF MDR-ACINETOBACTER BAUMANNII”. Journal of Ayub Medical College Abbottabad, vol. 27, no. 1, Mar. 2015, pp. 216-9, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/1145.