Integrated Program in Science Education for Development & National Science Development Board. (1981). IPSED modules for Leyte-Samar region. Published for NSDB by UP Science Education Center.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIntegrated Program in Science Education for Development और National Science Development Board. IPSED Modules for Leyte-Samar Region. Quezon City: Published for NSDB by UP Science Education Center, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIntegrated Program in Science Education for Development और National Science Development Board. IPSED Modules for Leyte-Samar Region. Published for NSDB by UP Science Education Center, 1981.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.