WIDARSO, W. (1994). Complete English Grammar/ Wishnubroto Widarso, Lulut Mariani. Kanisius.
Lua i Stíl Chicago (17ú heag.)WIDARSO, Wisnubroto. Complete English Grammar/ Wishnubroto Widarso, Lulut Mariani. Kanisius, 1994.
Lua MLA (8ú heag.)WIDARSO, Wisnubroto. Complete English Grammar/ Wishnubroto Widarso, Lulut Mariani. Kanisius, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.