ZAINALABIDEEN AL-HUSSEINI. Using the R statistical programming language to estimate the mediation variables Influencing the presence of the proportion of elements in the soil. Zien Journal of Social Sciences and Humanities, [S. l.], v. 7, p. 41–50, 2022. Disponível em: https://zienjournals.com/index.php/zjssh/article/view/1241. Acesso em: 11 apr. 2025.