Guatemala: Summer internship with Wildlife Conservation Society, Peten, Guatemala. 
         Uganda and          Kenya: Research field visit to in association with World Agroforestry Centre (ICRAF).
         Mexico: North American Mobility Program (NAMP) Representative at the University of Veracruzana. 


         Germany: Visiting Scientist with Bilateral Cooperation Fellowship from DFG (German Research Foundation).

         Costa Rica:  International agriculture study abroad program (2004) and research project (2016).

         Bali, Indonesia:  Presentation at the International Conference on Agriculture, Biology and Environmental Sciences in Bali, Indonesia, 2014.
         Rome, Italy:  Invited poster in Symposium on Agroecology for Food Security and Nutrition’ organized by the FAO, United Nation, Rome, Italy, 2014.
         Vienna, Austria: Poster in Joint FAO (UN)/IAEA International Conference on Managing Soils  for Food Security and Climate Change, Vienna, Austria, 2012.


         Aarhus, Denmark: Collaborative meeting & field visit at Aarhus University.

         České Budějovice, Czech RepublicUniversity of South Bohemia visit.

         Tamil Nadu, India: Presentation at the National Eco-development Board.

         USA: Several presanctions in national and regional meetings.