Pourazadi, L., Nehzati, G. A., Ghaziani, F., & Abbasai, S. "Evaluation the quality and quantity of phenolic compound and antioxidant activity of propolis in the vicinity of Karaj", Iranian Journal of animal Science, 47, 4, 2017, 499–506. doi: 10.22059/ijas.2017.202821.653431