found: Ethnologue:p. 161, under Benin (Dyerma (Zarma, Djerma, Zerma). Benin, Niger, Nigeria, and small population in Burkina Faso. Nilo-Saharan, Songhai) p. 169, under Burkina Faso (Dyerma (Dyarma, Dyabarma, Zabarma, Zarma, Adzerma, Djerma, Zarbarma)) p. 314, under Niger (Dyerma (Dyarma, Dyabarma, Zabarma, Zarma, Adzerma, Dherma, Zarbarma) 23 percent of pop. of Niger) p. 330, under Nigeria (Dyerma (Dyarma, Dyabarma, Zabarma, Zarma, Adzerma, Djerma, Zarbarma))
found: Curr. trends ling.:v. 7, p. 796 (Djerma = Dyerma, dial. of Songhai or closely related language)
found: Niger-Congo langs., 1989:p. 49 (Songhai and Dyerma possible Mande languages, relationship not clear)
found: Fivaz, D. Afr. langs, 1977:p. 7 (Zerma (var. Zarma, Adzerma, Djerma, Dyerma, Dyabarma, Zabarma, Zabirmawa) listed as dialect under Songhai)
found: LC database, Jan. 3, 1997(Zarma)
found: Ethnologue, 2014(Zarma, a language of Niger; dje. Alt. names: Adzerma, Djerma, Dyabarma, Dyarma, Dyerma, Zabarma, Zarbarma, Zarmaci [and Zerma in Nigeria]. Class: Nilo-Saharan, Songhai, Southern. Ethnic autonym: Dendi or Songai. Ethnic groups include Kurtey (32,000), Wogo (28,000), Songhay (400,000), Dendi (40,000). Also spoken in Burkina Faso [pop. 600], Mali [pop. 500], Nigeria [pop. 87,800])
found: Linguasphere, 1999(01-AAA-bb; zarma; UF dyerma, dyabarma, dyarma, zabarma, zarbarma, zabirmawa, adzerma, in French djerma; including wogo; Niger (Niamey, Dosso); Benin (Borgou), also Nigeria (Sokoto))