Gaya APA

Siregar, C, J, P., 2016-10-12, . (). 406110515 (Reference). 200: 2016-10-12.

Gaya MLA

Siregar, Charles, J., P.., 2016-10-12, . "406110515". Reference 200: 2016-10-12, . 297.8 MAJ h.