Guest Lecture : Prof. Ron. A. Harris (BYU. UTAH. USA) Berjudul : Interactive Learning Principles for Introductory Geology, dalam rangka ativitas JER (Jogja Earthquake in Regional).
Guest Lecture : Prof. Ron. A. Harris (BYU. UTAH. USA) Berjudul : Interactive Learning Principles for Introductory Geology, dalam rangka ativitas JER (Jogja Earthquake in Regional).