Juan Marcos González-Sepúlveda. 2008. Challenges and Solutions in Combining RP and SP Data to Value Recreation. A Dissertation in the Department of Agriculture and Resource Economics, Colorado State University. Dissertation
Andrew Pike. 2008. Longitudinal Patterns in Stream Channel Geomorphology and Aquatic Habitat in the Luquillo Mountains of Puerto Rico. A Dissertation in Earth and Environmental Science, University of Pennsylvania. Dissertation
Kirk Sherrill. 2006. Road and Stream Network Connectivity: Northeastern Puerto Rico. Masters Thesis, Colorado State University. Thesis
Brent Read and Melinda Laituri. 2005. Predicting travel costs for recreational visits at aquatic sites within the Caribbean National Forest using GIS.
NetLogo is a cross-platform multi-agent programmable modeling environment. NetLogo was utilized to build a Puerto Rico Recreation Model: