, B. R. A. S., & , D. A. Z. (2014). ORTHOGONALITAS-BIRKHOFF. [Yogyakarta] : Universitas Gadjah Mada.
Chicago Style Citation, BESTARI RATNA AYU SAHESTI, and Dr. Atok Zulijanto. ORTHOGONALITAS-BIRKHOFF. [Yogyakarta] : Universitas Gadjah Mada, 2014.
MLA引文, BESTARI RATNA AYU SAHESTI, and Dr. Atok Zulijanto. ORTHOGONALITAS-BIRKHOFF. [Yogyakarta] : Universitas Gadjah Mada, 2014.
警告：這些引文格式不一定是100％准確.