N. Hikmatusyachdiah and L. H. Sulistiyowati, “The Effect of Extrinsic Motivation and Organisational Culture on the Performance of Employees at the Perumda Air Minum (PDAM) Tirta Jati Kabupaten Cirebon”, IIJSE, vol. 9, no. 2, pp. 15906-15918, Jun. 2026.