Natalia, D., I. I. Idrus, M. R. S. Ahmad, and N. Najamuddin. “Dynamics of Post-Defense Gift-Giving Among Students: Between Appreciation, Trends, and Financial Pressure”. SIGn Journal of Social Science, Vol. 6, no. 2, Dec. 2025, pp. 187-02, doi:10.37276/sjss.v6i2.561.