APA citiranje

Kalalang, I. P. Z. (2011). Kalalang-Ong level of optimism scale. University of the Philippines Diliman Extension Program in Pampanga.

Chicago Style (17th ed.) Citation

Kalalang, Irish Pauline Z. Kalalang-Ong Level of Optimism Scale. Pampanga: University of the Philippines Diliman Extension Program in Pampanga, 2011.

MLA citiranje

Kalalang, Irish Pauline Z. Kalalang-Ong Level of Optimism Scale. University of the Philippines Diliman Extension Program in Pampanga, 2011.