https://kohalibrary.pids.gov.ph//cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22Natural%20resources%20-%20Philippines%22%20and%20su-to%3ASustainable%20development&format=rss2 2 0 100 ISBN 9789719449706 https://kohalibrary.pids.gov.ph//cgi-bin/koha/opac-detail.pl?biblionumber=8958 By Lasmarias, N.; Sumalde, Z.; Tongson, E. . Quezon City, Philippines : Resource and Environmental Economics Foundation of the Philippines, 2009 9789719449706

]]> https://kohalibrary.pids.gov.ph//cgi-bin/koha/opac-detail.pl?biblionumber=8958 ISBN 9718893105 https://kohalibrary.pids.gov.ph//cgi-bin/koha/opac-detail.pl?biblionumber=8863 By Espaldon, Ma. Victoria O. ; Baltazar, Ma. Rowena M.. xii, 227 p. 9718893105

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