@misc{998,
  author = {Westrum and N., Peter and Westrum, Susan and Songkilawan, Deetje and  and Sowenso, Paulus},
  title  = {Ol unggwanfer Berik olem = Perbendaharaan kata bahasa Berik = Berik vocabulary (Publikasi khusus bahasa-bahasa daerah, seri B 1). Universitas Cenderawasih / SIL.},
  year   = {1986}
}