Lua APA (7ú heag.)

PURWONO, R. Catatan Kuliah Beton Pratekan. ITS.

Lua i Stíl Chicago (17ú heag.)

PURWONO, Rachmat. Catatan Kuliah Beton Pratekan. ITS.

Lua MLA (8ú heag.)

PURWONO, Rachmat. Catatan Kuliah Beton Pratekan. ITS.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.