Aghabeigi, F. & Assadi, M. 2008: The genus Campanula (Campanulaceae) in Iran.- Edinb. J. Bot. 65 (3): 375-385.
Aghabeigi, F. 2010: Campanula in Assadi, M. et al. Flora of Iran no. 66, pp. 5-75., Research Institute of Forests and Rangelands publication.- Tehran.
Damboldt, J. 1978: Campanula L. in Davis, PH, (ed.) Flora of Turkey and the East Aegean Islands, vol 6, pp. 2-64.- Edinburgh.
Khansari E, Zarre S, Alizadeh K, Attar F, Aghabeigi F, Salmaki Y 2012: Pollen morphology of Campanula (Campanulaceae) and allied genera in Iran with special focus on its systematic implication.- Flora 207: 203-211.
Rechinger K, H. & Schimann Czeika H. 1965: Campanula L. in: Rechinger, K H, Schimann Czeika H. (eds.) Flora Iranica, no. 13, pp. 7-38.- Graz.
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