Elba, Riskina Agustin, et al. “THE EFFECT OF LEADERSHIP AND WORK ENVIRONMENT ON WORK PRODUCTIVITY: STUDY OF BANK BUKOPIN KCU LAMPUNG EMPLOYEES”. Jurnal Kompetitif Bisnis, vol. 1, no. 3, Oct. 2023, p. 9, https://jkb.fisip.unila.ac.id/index.php/jkb/article/view/328.