Gulle, J. G., & Magpantay, D. J. (2005). Schering Philippine Corporation: A technology audit. University of the Philippines Diliman.
Chicago-viite (17. p.)Gulle, Johanna Gotera, ja Dr. Jose Magpantay. Schering Philippine Corporation: A Technology Audit. Quezon City: University of the Philippines Diliman, 2005.
MLA-viite (9. p.)Gulle, Johanna Gotera, ja Dr. Jose Magpantay. Schering Philippine Corporation: A Technology Audit. University of the Philippines Diliman, 2005.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.