Integrated Environmental Management for Sustainable Development Programme. (1998). Guidelines for the formulation of the strategic environmental plan (SEP). DENR-IEMSD.
Chicago-viite (17. p.)Integrated Environmental Management for Sustainable Development Programme. Guidelines for the Formulation of the Strategic Environmental Plan (SEP). Quezon City: DENR-IEMSD, 1998.
MLA-viite (9. p.)Integrated Environmental Management for Sustainable Development Programme. Guidelines for the Formulation of the Strategic Environmental Plan (SEP). DENR-IEMSD, 1998.
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