Promovenda Sisca Damayanti has been declared to have graduated with honors. Dr. Sisca Damayanti, has successfully defended her research results and promoted them today, Friday, July 18, 2025. Dr. Sisca Damayanti is the 987th doctor of the Doctoral Program in Economics, Trisakti University and the 201st Doctor of Development Economics (Sharia Economics and Finance (IEF)), Trisakti University. Her research is entitled “The Influence of Internal and External Factors on Halal Purchasing Behavior in Muslim Consumers”. This research is very interesting and hopefully the results of this research that has been defended can be a contribution to the nation, state and religion. Once again, congratulations and success to Dr. Sisca Damayanti.