James Scott Steward และผู้แต่งคนอื่นๆ. (2010) Diet analysis of the red-headed trogon and orange-breasted trogon in relation to seasonal arthropod abundance and avian phenology. Mahidol University:ม.ป.ท.James Scott Steward และผู้แต่งคนอื่นๆ. 2010. Diet analysis of the red-headed trogon and orange-breasted trogon in relation to seasonal arthropod abundance and avian phenology. ม.ป.ท.:Mahidol University;James Scott Steward และผู้แต่งคนอื่นๆ. Diet analysis of the red-headed trogon and orange-breasted trogon in relation to seasonal arthropod abundance and avian phenology. ม.ป.ท.:Mahidol University, 2010. Print.