L. Purba, R. Harahap, and S. Junaidah, “The Influence of Income, Premiums, And Brand Image on The Decision to Use Insurance Services at PT Panin Dai Ichi Life Sales Office Medan”, Manajemen : Jurnal Ekonomi, vol. 7, no. 3, pp. 747–756, Nov. 2025, doi: 10.36985/fzsr7106.