, V., & , D. A. I. (2010). Geology and vharacteristics of ore mineral deposits at Slahung area, Ponorogo regency east java, Indonesia. [Yogyakarta] : Universitas Gadjah Mada.
استشهاد بنمط شيكاغو, VISAIPHONE, و Dr. Arifudin Idrus. Geology and Vharacteristics of Ore Mineral Deposits At Slahung Area, Ponorogo Regency East Java, Indonesia. [Yogyakarta] : Universitas Gadjah Mada, 2010.
MLA استشهاد, VISAIPHONE, و Dr. Arifudin Idrus. Geology and Vharacteristics of Ore Mineral Deposits At Slahung Area, Ponorogo Regency East Java, Indonesia. [Yogyakarta] : Universitas Gadjah Mada, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.