M. Sulaiman, G., H. Ali, E. (2006). Effect of Iraqi propolis )Bees gum ) Extract on Gram Negative and Positive Bacteria. , 9(2), 39-45.

G. M. Sulaiman; E. H. Ali. "Effect of Iraqi propolis )Bees gum ) Extract on Gram Negative and Positive Bacteria". , 9, 2, 2006, 39-45.

M. Sulaiman, G., H. Ali, E. (2006). 'Effect of Iraqi propolis )Bees gum ) Extract on Gram Negative and Positive Bacteria', , 9(2), pp. 39-45.

M. Sulaiman, G., H. Ali, E. Effect of Iraqi propolis )Bees gum ) Extract on Gram Negative and Positive Bacteria. , 2006; 9(2): 39-45.