@article{138417,
  author           = {Oko, Okoji R.},
  journal          = {Journal of West African languages},
  number           = {1},
  pages            = {37-52},
  title            = {Tense and aspect in Yala},
  volume           = {16},
  year             = {1986},
  inlg             = {English [eng]},
  keywords         = {;waf;nga;lng;grm;tam;t.653;},
  lgcode           = {Yala [yba] (autotranslated from Maho's coding system)},
  macro_area       = {Africa},
  src              = {eballiso2009, weball, zurich},
  subject_headings = {waf, nga, lng, grm, t.653},
  zurichcode       = {Yala [YBA]}
}