, M., & , P. I. S. P. (2009). An analysis of factors related to risky driving behavior of young novice drivers in Semarang. [Yogyakarta] : Universitas Gadjah Mada.
استشهاد بنمط شيكاغو, MAHARDIKA, و Prof. Ir. Sigit Priyanto. An Analysis of Factors Related to Risky Driving Behavior of Young Novice Drivers in Semarang. [Yogyakarta] : Universitas Gadjah Mada, 2009.
MLA استشهاد, MAHARDIKA, و Prof. Ir. Sigit Priyanto. An Analysis of Factors Related to Risky Driving Behavior of Young Novice Drivers in Semarang. [Yogyakarta] : Universitas Gadjah Mada, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.