, H., & , B. R. L. (2006). Formulasi strategi bersaing PT Indorama Synthetics Tbk. [Yogyakarta] : Universitas Gadjah Mada.
Chicago Style Citation, HUTASOIT, and Bambang Riyanto LS. Formulasi Strategi Bersaing PT Indorama Synthetics Tbk. [Yogyakarta] : Universitas Gadjah Mada, 2006.
MLA引文, HUTASOIT, and Bambang Riyanto LS. Formulasi Strategi Bersaing PT Indorama Synthetics Tbk. [Yogyakarta] : Universitas Gadjah Mada, 2006.
警告：這些引文格式不一定是100％准確.