Marketing Strategy Competitiveness in Sidoarjo Private Vocational Training Institutions: Strategi Pemasaran Daya Saing Lembaga Pelatihan Kerja Swasta Sidoarjo. Procedia of Social Sciences and Humanities, [S. l.], v. 9, p. 108–114, 2026. DOI: 10.21070/ah2ght23. Disponível em: https://pssh.umsida.ac.id/index.php/pssh/article/view/566. Acesso em: 19 jul. 2026.