Gaya APA
Ruky, S, M. (1999).
Menilai penyertaan dalam perusahaan: (Business valuation; valuation of closely-held business and business ownership interest) .
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Ruky, Saiful, M..
"Menilai penyertaan dalam perusahaan: (Business valuation; valuation of closely-held business and business ownership interest)".
Jakarta:
Gramedia Pustaka Utama,
1999.
Textbook.