found: Braukämper, U. Fandaanano: the traditional socio-religious system of the Hadiyya in Southern Ethiopia, 2014:p. xi (Hadiyyisa, the language of the Hadiyya) p. 10 (major subgroups of the Hadiyya are the Libidoo (Maräqo), the Leemo, the Agaara-Hadiyya including the Baadoogo, the Sooro, the Shaashoogo and the Baadawwaachcho) p. 11 (The Hadiyya proper, who have frequently been referred to in the ethnographic literature by the pejorative name Gudeella)
found: African ethnonyms, 1996(Hadiya (Ethiopia); variant: Hadya)
found: Historical dictionary of Ethiopia, 2013(Hadiya people and language; also known by other names including Hadya and the derogatory Gudella)
found: Enc. Aethiopica, 2003-(Hadiyya language; subgroup of Highland East Cushitic) (Hadiyya ethnography: used for different ethnic unit. H. proper are linguistically part of Highland East Cushitic cluster. H. also used [in broad sense] for Qabeena, who adopted a Kambaata dialect; & for East-Gurage speaking groups)