T. Yusuf, Y. Hendrawan, E. . Adrian Kailola, R. Rima, S. . Dewi, and I. . Febriyanti, “ANALISIS SEMANGAT KERJA KARYAWAN PT. JASAMARGA TOLLROAD OPERATOR DI BALIKPAPAN - SAMARINDA”, MR.EKO, vol. 2, no. 1, pp. 11–20, Jan. 2023.