SIMORANGKIR, J. C. T. (1973). Hak Cipta.
Chicago Style (17th ed.) CitationSIMORANGKIR, J. C. T. Hak Cipta. 1973.
MLA (8th ed.) CitationSIMORANGKIR, J. C. T. Hak Cipta. 1973.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation