Черкашина, Л. А. 2013. “Retrospective Review of the Periodic Publication the «Humanization of Training-Educate Process» (1996-2000 Years) on the Issues of Labor and Ecological Education With Schoolchildren”. Pedagogy of Higher and Secondary Education 37 (February). Kryvyi Rih, Ukraine:488-92. https://doi.org/10.31812/educdim.v37i0.3374.