Gaya APA

Unnes, . (2012). PROCEEDINGS IMPROVING PERFORMANCE BY IMPROVING ENVIRONTMENT, VOL.2, NO.1 TAHUN 2012 . : .

Gaya MLA

Unnes, . "PROCEEDINGS IMPROVING PERFORMANCE BY IMPROVING ENVIRONTMENT, VOL.2, NO.1 TAHUN 2012". : , 2012. Buku.