(en) Revised Kono, Krio, Limba, Mende and Themne orthographies - workshop held during April 24-27, 1984, Freetown, Ministry of Education (Sierra Leone),
(en) Mac Dixon-Fyle et Gibril Cole, New perspectives on the Sierra Leone Krio, New York, Peter Lang, , xxiv + 347 (ISBN0-8204-7937-3)
(en) Malcolm Awadajin Finney, « Universal and substrate influence on the phonotactics and syllable structure of Krio », dans Magnus Huber et Viveka Velupillai, Synchromic and diachronic perspectives on contact languages, Amsterdam, John Benjamins Publishing, , 23-42 p. (DOI10.1075/cll.32.04fin)