Integrated Environmental Management for Sustainable Development Programme. (1998). Guidelines for the formulation of the strategic environmental plan (SEP). DENR-IEMSD.
Lua i Stíl Chicago (17ú heag.)Integrated Environmental Management for Sustainable Development Programme. Guidelines for the Formulation of the Strategic Environmental Plan (SEP). Quezon City: DENR-IEMSD, 1998.
Lua MLA (9ú heag.)Integrated Environmental Management for Sustainable Development Programme. Guidelines for the Formulation of the Strategic Environmental Plan (SEP). DENR-IEMSD, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.