Gonzaga, Philip A. and Lariosa, Brian L. and Mendoza, Ryan A (2001) Failure to meet 22% of the projected production output due to machine shutdown of Liwayway Marketing Corporation. Undergraduate thesis, De La Salle University-Dasmariñas.
Gonzaga, Philip A. and Tagbago, Paul Leonard D. (2001) Filtering and purifying water in a more economical, innovative, and convenient way using activated carbons. Undergraduate thesis, De La Salle University-Dasmariñas.