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| Lienhard, Ruth | Tone in Daba | 1977 | | Linguistics |
| Bradley, Virginia M. | Description of surface tone in the Limbum verb phrase | 1994 | | Linguistics |
| Mbuagbaw, Tanyi Eyong | Denya tone orthography | 1995 | | Linguistics, Literacy and Education |
| Anderson, Stephen C.; Menetrey, Catherine | Tone in Gude -- A first look | 1990 | | Linguistics |
| Spreda, Klaus W. | The Noun in Metta | 2000 | | Linguistics |
| Spreda, Klaus W. | The Associative Noun Phrase in Metta | 2000 | | Linguistics |
| Patman, Frankie | Tone in the Nugunu verb phrase | 1991 | | Linguistics |
| Tuinstra, Anna | Ipulo Phonology and Morphology | 2019 | | Linguistics |
| Boyd, Ginger | Précis d'orthographe pour la langue yambeta | 2011 | | Linguistics, Literacy and Education |
| Heath, Daniel | Tone in the Makaa associative construction | 1991 | | Linguistics |
| Jones, Randy | Tone in the Kom noun phrase, Part II | 1997 | | Linguistics |
| Luider, Jennifer | A Phonological Sketch of the Bambalang (Chrambo) Language | 2009 | | Linguistics |
