eLearning and fun. - Lisa Neal; Ray Perez; Diane Miller (CHI Extended Abstracts, 2004)

Online learning and fun. - Lisa Neal; Diane Miller; Ray Perez (eLearn Mag., 2004)

Approaches to Enhancing Transfer of Training using Adaptive Instructional Systems. - Jeremiah T. Folsom-Kovarik; Behrooz Mostafavi; Robert A. Sottilare; Ian Davidson; Ray Perez; Peter B. Walker (SoftCOM, 2019)