Schlabach, Raymond A. and Stephen H. Levinsohn. 1983. "Aspectos De Raices Alternatives Del Verbo Bribri." In America Indigena, 43: 155-169.

Sandonato, Marie. 1994. "Zazaki." In Typological Studies in Negation, 125-142. Benjamins.

Nedjalkov, Igor. 1994. "Evenki." In Typological Studies in Negation, 1-34. Benjamins.

Mosel, Ulrike and Ruth Spriggs. 1999. "Negation in Teop (Bougainville, North Solomon Islands)." In Negation in Oceanic Languages, edited by Even Hovdhaugen and Ulrike Mosel. 45-56. Lincom Europa.

Mcarthur, Harry and Lucille Mcarthur. 1966. "Aguacateca." In Lenguas de Guatemala, edited by Marvin Mayers. 201-235. Ministerio de Educación.

Margetts, Anna. 1999. "Negation in Saliba (Papua New Guinea, Milne Bay Province)." In Negation in Oceanic languages - typological studies, edited by U. Mosel and E. Hovdhaugen. 20-44. Lincom Europa.

Jensen, Allen A. 1994. "Wayampi." In Typological Studies in Negation, 343-364. Benjamins.

Eades, Dianne. 1977. "Gumbaynggir Relative Clauses and Possessive Phrases." In Oceanic Linguistics, 16: 179-192.

Wmffre, Iwan. 1998. "Central Breton." 152: Lincom Europa.

Winfield, W. W. 1928. "A Grammar of the Kui Language." 245: Asiatic Society of Bengal.