T. Imaliya, E. Zusrony, A. S. Ramadhan, and A. U. Nisa, “THE EFFECT OF DIGITAL MARKETING, DEMOGRAPHY, AND HUMAN RESOURCES COMPETENCY ON THE MARKETING PERFORMANCE OF THE UPPKS GROUP OF BERGAS SUB-DISTRICT IN THE TIME OF COVID-19 RECOVERY”, IJEBAR, vol. 6, no. 4, Dec. 2022.