Media

Valderrama, Josie A.  (2015). Development & Validation of a Problematic Smartphone Use Scale. Alliant International University. ProQuest Dissertations & Theses,  3620293. Proquest link.

Chiu, E. Y. & Valderrama, J. (2015). "Locating neurobiological abnormalities in Internet Addiction." PsycCRITQUE, 60, 45. Scholars Portal article link.