DATTA, S P; MEENA, B L; RATTAN, R K. Development of a Computer Program for Calculating Metal Ion Activity Using Baker Soil Test. Journal of the Indian Society of Soil Science, India, v. 61, n. 1, 2013. Disponível em: https://epubs.icar.org.in/index.php/JISSS/article/view/31747. Acesso em: 17 jul. 2026.