Zaiets, Ivan. “Production Activities of the Early Trypillian Population of Podillia”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 2, Apr. 2000, pp. 17-25, https://doi.org/10.31652/2411-2143-1999-2-17-25.