Manago, S. M. M., & Tharayil, D. P. (2008). The relationship of anxiety and self-efficacy with the superstitious beliefs of male and female college students. University of the Philippines Diliman extension program in Pampanga.

Manago, Sheryll Marie M., and Davis P. Tharayil. The Relationship of Anxiety and Self-efficacy with the Superstitious Beliefs of Male and Female College Students. Pampanga: University of the Philippines Diliman extension program in Pampanga, 2008.

Manago, Sheryll Marie M., and Davis P. Tharayil. The Relationship of Anxiety and Self-efficacy with the Superstitious Beliefs of Male and Female College Students. University of the Philippines Diliman extension program in Pampanga, 2008.