Without these people, my internship journey could not be as colorful as it is now. They contribute a lot to me and make me feel very grateful. Firstly, I would like to thank both of my parents that always support me mentally and financially. Other than that, I would also like to thank Ms. Fadila Rahayu, the Senior Manager for Quality Assurance and Ms. Hanan Sheikh Ali, the Senior Engineer for Quality Assurance. They gave me the chance to follow my internship at the company. Both of them led me well through my internship with advice and feedback despite their busy schedule.