Suparna, S. (1987). Manual eksekutif sehari-hari. Galaxy Puspa Mega.
Chicago Style (17th ed.) CitationSuparna, Stefan. Manual Eksekutif Sehari-hari. Galaxy Puspa Mega, 1987.
MLA (8th ed.) CitationSuparna, Stefan. Manual Eksekutif Sehari-hari. Galaxy Puspa Mega, 1987.
Warning: These citations may not always be 100% accurate.