Niculae L. Marian Popa, Statistici multivariate aplicate în psihologie, Editura Polirom, Iași, 2010, 358 p. PRU [Internet]. 2020Jan.24 [cited 2026Apr.23];9(2):125-8. Available from: https://www.hrp-journal.com/index.php/pru/article/view/382