“PENGARUH MOTIVASI INTRINSIK TERHADAP PRESTASI KERJA KARYAWAN DI RSPAU Dr. S. HARDJOLUKITO YOGYAKARTA”. Jurnal Optimal, vol. 14, no. 1, Jan. 2019, pp. 27-48, https://jurnal.stieieu.ac.id/index.php/opt/article/view/73.