College of Agriculture;
Forestry and Engineering;
Quirino State University;
Diffun;
Philippines;
Friends of the Environment for Development and Sustainability;
Inc.;
Bayombong;
Philippines;
College of Forestry;
Nueva Vizcaya State University;
Bayombong;
Philippines;
Willingness to Pay; Payment for Watershed Services; Watershed Management; Logit Model; Barobbob Watershed;