1. Effect of the bee product ‘propolis’ on the mitotic cells of Vicia faba, Hordeum vulgare, Allium cepa and Allium sativum;Abdou;Assiut Journal of Agricultural Sciences,1988
2. Studies of the sensitizing properties of propolis;Acciai;Contact Dermatitis,1990
3. In vitro antiviral activity of propolis;Amoros;Apidologie,1992
4. Arctander S. (1960) Perfume and Flavor Materials of Natural Origin. pp. 736. S. Arctander, Elizabeth, NJ
5. Propolis extract. Part 6. Subacute toxicity and cutaneous primary irritation index;Arvouet-Grand;Journal de Pharmacie de Belgique,1993