Gaya APA

Quthb, S., Awat, N, J. (1990). Metode Peramalan Kuantitatif (Ed. 1). Yokyakarta, Liberty Yogyakarta: Gadjah Mada University Press.

Gaya MLA

Quthb, Sayyid., Awat, Napa, J.. "Metode Peramalan Kuantitatif". Ed. 1 Yokyakarta, Liberty Yogyakarta: Gadjah Mada University Press, 1990. Text.