International Guest Lecturer Lecture, November 22, 2018. In order to strengthen the mastery of pure mathematics knowledge for 1st semester students, Study Program Pend. Mathematics invited Salang Musikasuwan, Ph.D., an expert in fuzzy sets “Fuzzy Model,” who came from the Department of Mathematics and Computer Science Faculty of Science and Technology, Prince of Songkla University, Pattani Campus, Thailand. On this occasion, Salang M. Ph.D. described the use of Fuzzy Model in mathematical research with the topic “Modeling, Simulation, and Visualization from Basic Science to Serve Communities and Our Planet.” Students were very enthusiastic in listening and actively involved in the activity. The benefits of the activity are also in order to improve the academic climate in familiarizing students with interacting with experts from abroad.