An Indonesian. I am currently a lecturer and researcher at the Mathematics Department of UIN Sunan Kalijaga in Indonesia. My field of interest is Applied Mathematics, hence I taught courses such as Discrete Mathematics, Mathematics of Hisab-Rukyat, Graph Theory, Operations Research, Quantitative Method, System Modelling, Islam and Science, and Entrepreneurship. During my career, I have been awarded numerous research grants for portfolio optimisation and operations research. I received my PhD from the Department of Mathematical Sciences at Universiti Teknologi Malaysia in Malaysia and my Master's degree in Applied Mathematics from Chemnitz University of Technology in Germany. Previously, I graduated from Yogyakarta State University in Indonesia with a Bachelor of Mathematics degree. I take pleasure in football and travelling to new places.