KAILA, A. Determination of total organic phosphorus in samples of mineral soils. Agricultural and Food Science, [S. l.], v. 34, n. 1, p. 187–196, 1962. DOI: 10.23986/afsci.71582. Disponível em: https://journal.fi/afs/article/view/71582. Acesso em: 28 mar. 2024.