PURWANA, K.; KUSNADI; NANDILLA, S. . Pengaruh Standar Operasional Prosedur (SOP) dan Lingkungan Kerja Fisik Terhadap Kinerja Karyawan (Survei pada Customer Service PT. Jasamarga Tollroad Operator Ruas Tol Jakarta-Cikampek). Jurnal Bisnis, [S. l.], v. 14, n. 1, p. 167–183, 2026. DOI: 10.62739/jb.v14i1.174. Disponível em: https://jurnal.stieb-perdanamandiri.ac.id/index.php/ilejurnalojs/article/view/174. Acesso em: 18 aug. 2026.