Kartika Sari, M.Si., Psychologist born in Banda Aceh on October 19, 1979. Completed undergraduate studies at the Faculty of Psychology, University of Indonesia and then  in 2002 continued Master's Profession at Faculty of Psychology University of Indonesia and successfully completed study in 2005. Before joining the Psychology study Program of the Faculty Medicine Unsyiah in 2009, he had worked  at the Crisis Center of the Faculty Psychology UI after the tsunami for one year and had worked with NGO's for almost six years with the work area in Biruen, Nort Aceh and Bener Meriah. Until now, he has been more involved in Clinical Psychology, Positive Psychology, Projective Psychology, and Psychology of Emotion. Research has been produced related to forgiveness, well-being, anxiety, consideration of future consequences, gratitude, ethical decision making.