On Tuesday, June 17, 2025, the Doctoral Program in Economics, focusing on Development Economics (Sustainable Development), held a closed session with Promovensdus Teddy Poernama. At this session, Promovensdus Teddy Poernomo was declared to have passed. The research conducted for his dissertation was themed on developing a tourism model that supports sustainable tourism. Hopefully, this session can serve as a stepping stone for the next session, which is an open session. Once again, congratulations and success to Promovensdus Teddy Poernomo on his achievements.