- Invited lecture pada kuliah Feed Science (program bachelor), Mie University, Japan, 17 Mei 2015. Topik: Tropical feed resources (Feed Science_Mie)
- Invited lecture pada kuliah Dairy Nutrition (program master), Ghent University, Belgium, 25 November 2013. Topik: The role of plant phenolics in ruminant nutrition (ITPDN 2013_Ugent_tannins)
- Invited lecture pada kuliah Ruminant Science (program master), Swiss Federal Institute of Technology Zurich (ETH Zurich), Switzerland, 02 Juni 2010. Topik: Tropical feeds and ruminal methane emissions (Trop feed and methane_ETHZ)