LEWIS, G. (1994). Taktik menetapkan harga. Gramedia Pustaka Utama.
Chicago Style (17th ed.) CitationLEWIS, Gregory. Taktik Menetapkan Harga. Jakarta: Gramedia Pustaka Utama, 1994.
MLA (9th ed.) CitationLEWIS, Gregory. Taktik Menetapkan Harga. Gramedia Pustaka Utama, 1994.
Warning: These citations may not always be 100% accurate.