Laudański Z, Mańkowski D, Sieczko L, Janaszek-Mańkowska M. The application of orthogonal contrasts to determine homogeneous groups. pb&ss [Internet]. 2021 Dec. 2 [cited 2025 Dec. 6];82:31-44. Available from: https://ojs.ihar.edu.pl/index.php/pbss/article/view/362