Villalobos-Perozo, Rafael. “Improvement of the Student Performance in Tropical Medicine With the Problem Based Learning Method in the Universidad Del Zulia, Facultad De Medicina, Universidad Del Zulia”. Kasmera 34, no. 2 (December 7, 2006): 123-126. Accessed August 2, 2025. https://produccioncientifica.luz.edu.ve/index.php/kasmera/article/view/4777.