N. Aziz, A. S. Amelia, F. Ichwani, G. M. Ningsih, and A. N. Ma'rifah, Trans., “The Impact of Sustainable Marketing Strategies and Career Development Opportunities on Employee Productivity and Customer Loyalty in Jakarta”, WSIS, vol. 4, no. 06, pp. 1021–1034, Jun. 2026, doi: 10.58812/wsis.v4i06.2932.