Pengaruh Workload, Career Growth, dan Social Support Supervisory terhadap Talent Retention dengan Job Satisfaction sebagai Mediasi Pada Karyawan Perusahaan E-Commerce di Jabodetabek = The Influence of Workload, Career Growth, and Social Support Supervisory on Talent Retention with Job Satisfaction as a Mediating Variable (A Study on Employees of E-Commerce Companies in Jabodetabek)