SUGIANTO, Sugianto; PRASETYO, Ilham Bagus; SETIAWAN, Muhammad Irfan. Analysis of the Causes of Obstacles in the Implementation of Public Transportation Company Safety Management Systems in Public Transportation Companies. Jurnal Perintis: Pengembangan Riset Inovatif Teknik, Teknologi, dan Sains, Tegal, Indonesia, v. 2, n. 3(Mei-Juni), p. 129–136, 2026. Disponível em: https://ejournal.pktj.ac.id/index.php/perintis/article/view/135. Acesso em: 22 jul. 2026.