Search results for: Petro Skrypchuk
Journal of Ecological Engineering > 2020 > Vol. 21, nr 6 > 42--52
International Journal of New Economics and Social Sciences (IJONESS) > IJONESS 2015 > 2(2) > 102-108
Journal of Ecological Engineering > 2020 > Vol. 21, nr 6 > 42--52
International Journal of New Economics and Social Sciences (IJONESS) > IJONESS 2015 > 2(2) > 102-108