izdano v Transactions of the National Academy of Science and Technology (2015)

izdano v Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) (2008)

izdano v Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) (2006)

izdano v Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) (2003)

izdano v Compendium of Human Ecology Researches in the Philippines (2003)

Izdano 1994

izdano v Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) (1992)

Izdano 1992

Izdano 1977