APA Style
Usry, Milton F., Matz, Adolph, Wibowo, Herman, Hutauruk, Gunawan, Sirait, Alfonsus. ().
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Chicago Style
Usry, Milton F., Matz, Adolph, Wibowo, Herman, Hutauruk, Gunawan, Sirait, Alfonsus.
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MLA Style
Usry, Milton F., Matz, Adolph, Wibowo, Herman, Hutauruk, Gunawan, Sirait, Alfonsus.
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Turabian Style
Usry, Milton F., Matz, Adolph, Wibowo, Herman, Hutauruk, Gunawan, Sirait, Alfonsus.
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