, S., & , D. S. (1994). Estimator Regresi Ridge Minimaks. [Yogyakarta] : Universitas Gadjah Mada.
Chicago Style Citation, SUHARTA, and Drs. Subanar. Estimator Regresi Ridge Minimaks. [Yogyakarta] : Universitas Gadjah Mada, 1994.
MLA引文, SUHARTA, and Drs. Subanar. Estimator Regresi Ridge Minimaks. [Yogyakarta] : Universitas Gadjah Mada, 1994.
警告：這些引文格式不一定是100％准確.