Hesti Aryani is an external lecturer for Indonesian language course at ISEK - Universität Zürich. She obtained her BA in English Literature from Gadjah Mada University, Indonesia and her MA in English Language and Communication from Chiang Mai University, Thailand. She is also certified in TESOL (Teaching English as Second or Other Languages) and BIPA (Indonesian Language for Foreign Learners) teaching. She has been teaching English for general purposes at the Faculty of Cultural Sciences as well as teaching Indonesian language courses at the Center of Southeast Asian Social Studies in Gadjah Mada University, Indonesia.