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.
Citace podle Chicago (17th ed.)Integrated Program in Science Education for Development a National Science Development Board. IPSED Modules for Leyte-Samar Region. Quezon City: Published for NSDB by UP Science Education Center, 1981.
Citace podle MLA (9th ed.)Integrated Program in Science Education for Development a National Science Development Board. IPSED Modules for Leyte-Samar Region. Published for NSDB by UP Science Education Center, 1981.
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