Simorangkir. Etiket Kantor/ Simorangkir. s.l: s.n.
Chicago Style (17th ed.) CitationSimorangkir. Etiket Kantor/ Simorangkir. s.l: s.n.
MLA (8th ed.) CitationSimorangkir. Etiket Kantor/ Simorangkir. s.l: s.n.
Warning: These citations may not always be 100% accurate.