PROKOF’EVA, T. V. Experience of the teaching of soil classification systems to students at different stages of education (Faculty of Soil Science, LMSU, Russia). Bulletin of Geography. Physical Geography Series, [S. l.], n. 14, p. 85–90, 2018. DOI: 10.2478/bgeo-2018-0008. Disponível em: https://apcz.umk.pl/BOGPGS/article/view/16137. Acesso em: 18 jul. 2024.