Kheyri, Samaneh, Rezapanah, Mohammadreza, Shojaee, Mahmood, Salehi Jozani, Gholamreza, Kheradpir, Neda (2016). Study of biological differences between two native Iranian isolates of Bacillus thuringiensis from Kordestan and Golestan provinces on Helicoverpa armigera Hubner. *Applied Plant Protection*, 4(4), 203-211.