<SOSRODJOJO, I. Paket pelajaran kursus Basic. Elex Media Komputindo.
Chicago Style (17th ed.) Citation<SOSRODJOJO, Indra>. Paket Pelajaran Kursus Basic. Elex Media Komputindo.
MLA (8th ed.) Citation<SOSRODJOJO, Indra>. Paket Pelajaran Kursus Basic. Elex Media Komputindo.
Warning: These citations may not always be 100% accurate.