Test Theory: A Unified Treatment Autor Roderick P. McDonald iul 1999 Hardback Preț: 1169.66 lei 1426.42 lei 6-8 săpt. -18%
Factor Analysis and Related Methods Autor Roderick P. McDonald 1985 Hardback Preț: 1158.71 lei 1413.05 lei 6-8 săpt. -18%