Bilgiç, S., E. Söğüt, and A. C. Seydim. “Chitosan and Starch Based Intelligent Films With Anthocyanins from Eggplant to Monitor PH Variations”. Turkish Journal of Agriculture - Food Science and Technology, vol. 7, no. sp1, Dec. 2019, pp. 61-66, doi:10.24925/turjaf.v7isp1.61-66.2705.