SUGITO, B. (1997). Proses industri. FT-UMS.
Lua i Stíl Chicago (17ú heag.)SUGITO, Bibit. Proses Industri. Surakarta: FT-UMS, 1997.
Lua MLA (9ú heag.)SUGITO, Bibit. Proses Industri. FT-UMS, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.