Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
371.26 Rb-67-42 E1593
Payne D T Comparison of percentage of pupillary dilation with other measures of difficulty of mental multiplication items New Jersey ETS 1967 * Educational tests and measurements