R. Arif Ajis192, Aldo Adityasa, and Henson Enjein Manurung, “PENGARUH DISIPLIN KERJA DAN MOTIVASI TERHADAP KINERJA KARYAWAN KOPERASI LRT SUMSEL”, Journal of Management Marketing, Finance and Human Resources, vol. 4, no. 2, pp. 18–22, Aug. 2026.