Balik kalikasan an ecotourism development of Pinsal Falls - Siao, Genevieve K.; Aleta, Manuel R.; Espina, Cristopher Stonewall P. (2000)
Vita.
Thesis (Bachelor of Landscape Architecture)--University of the Philippines Diliman.
Keywords: Environmental protection -- Pinsal Falls (Sta. Maria, Ilocos Sur); Pinsal Falls (Sta. Maria, Ilocos Sur).