1- Estimating live weight of sheep of Guatemala by a simple formula Pere Parés, M. Caballero, L. Vilà |
2- The income and its influence in shaping business practices of families in the city of Sucre Luis Éric Espinoza Gómez |
3- Cultural landscape; an approach to build security Carlos Montero, Juan Carlos Montero |
4- A migration study using the method of life story Cándido González, Gabriela González |
5- Use of prosthetic materials in the health care of wildlife in calakmul Alberto Encalada, Verónica López, Ivonne Duarte, Evarista González, Luisa González |
6- Avoiding nightmares selling dreams: migration to U.S.A and ecotourism in protected areas. The case study of los Tuxtlas biosphere reserve, Mexico Ángeles Álvarez, Martha Nava |
7- Bamboo (Guadúa Cane) in the Province of Santa Elena Manuel Mera, Carlos Olives, Carlos Sáenz Ozaetta, Víctor Solorzano Méndez |