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Yulhendra, Dedi (2006) Teknik Penahanan Air dan Drainase Air Pada Tambang Bawah Tanah. Project Report. FT UNP, Padang.
Yulhendra, Dedi and Anaperta, Yoszi Mingsi (2017) The Modeling of Massive Limestone Using Indicator Krigng Method: Case Studies of Massive Limestone in PT Sinar Asia Fortuna. In: 4 th International Conference on Technical and vocation Education and Training Padang, 9-11 November 2017, Padang.