Philippines. Technology and Livelihood Resource Center, Philippines. Technology and Livelihood Resource Center. Technology Correspondence Program, & Ibarra, R. M. (1990). Ang paggawa ng sabon: Isang courseware ng Technology Correspondence Program, Technology and Livelihood Resource Center. Technology and Livelihood Resource Center.
Citazione stile Chigago Style (17a edizione)Philippines. Technology and Livelihood Resource Center, Philippines. Technology and Livelihood Resource Center. Technology Correspondence Program, e Rafael M. Ibarra. Ang Paggawa Ng Sabon: Isang Courseware Ng Technology Correspondence Program, Technology and Livelihood Resource Center. Makati City: Technology and Livelihood Resource Center, 1990.
Citatione MLA (9a ed.)Philippines. Technology and Livelihood Resource Center, et al. Ang Paggawa Ng Sabon: Isang Courseware Ng Technology Correspondence Program, Technology and Livelihood Resource Center. Technology and Livelihood Resource Center, 1990.