APA Style

Arens, Alvin A., Wibowo, Herman, Saat, Suryadi, Sirait, Alfonsus, Loebbecke, James K, Tjakrakusuma, Ilham. (). . : .

Chicago Style

Arens, Alvin A., Wibowo, Herman, Saat, Suryadi, Sirait, Alfonsus, Loebbecke, James K, Tjakrakusuma, Ilham. . : , . .

MLA Style

Arens, Alvin A., Wibowo, Herman, Saat, Suryadi, Sirait, Alfonsus, Loebbecke, James K, Tjakrakusuma, Ilham. . : , . .

Turabian Style

Arens, Alvin A., Wibowo, Herman, Saat, Suryadi, Sirait, Alfonsus, Loebbecke, James K, Tjakrakusuma, Ilham. . : , . .