Verified Certificate

Supported by the following organizations

This is to certify that Walter Vladimir Salas Ramos successfully completed and received a passing grade in 40040152X: Geology and Engineering Geology 地质学与工程地质 a course of study offered by TsinghuaX, an online learning initiative of Tsinghua University.

Noted by

Wenjie Xu

Wenjie Xu

Associate Professor, Department of Hydraulic Engineering Tsinghua University

Nie Fenghua

Nie Fenghua

Director, Online Education Office Tsinghua University