Rujukan Implosif velar bersuara

  • Connell, Bruce; Ahoua, Firmin; Gibbon, Dafydd (2002), "Ega", Journal of the International Phonetic Association, 32 (1): 99–104, doi:10.1017/S002510030200018X
  • Devonish, H; Harry, Otelamate G. (2004), "Jamaican phonology", dalam Kortman, B; Shneider E. W. (para penyunting), A Handbook of Varieties of English, phonology, 1, Berlin: Mouton De Gruyter, halaman 441–471
  • Keer, Edward (1999), Geminates, The OCP and The Nature of CON, Rutgers University
  • Tench, Paul (2007), "Tera", Journal of the International Phonetic Association, 37 (1): 228–234, doi:10.1017/s0025100307002952