Saragih, Elvira Inggrid Rodearni, et al. “The Influence of Interpersonal Skills, Salesmanship Skills, and Work Environment on Medical Representative Performance”. Almana : Jurnal Manajemen Dan Bisnis, vol. 7, no. 3, Dec. 2023, pp. 431-9, doi:10.36555/almana.v7i3.2168.