Guzmán Hernández, Tomás, Freddy Araya Rodríguez, Javier Obando Ulloa, Mikel Rivero Marcos, and Guillermo Castro Badilla. “Evaluation of Thermal and Photovoltaic Solar Systems in Agricultural Production Units, Northern Huetar Region, Costa Rica”. Agronomía Mesoamericana 28, no. 3 (September 1, 2017): 535-548. Accessed April 18, 2019. https://revistas.ucr.ac.cr/index.php/agromeso/article/view/26442.