United States Department of Labor occupational safety and health Administration, author
OSHA, 2004
Buku Teks
Della Ocksania, author
Fakultas Ilmu Administrasi Universitas Indonesia, 2015
UI - Skripsi (Membership)
Sri Rejeki, author
Rekayasa Sains, 2020
Buku Teks
Siti Zubaedah, author
Universitas Indonesia, 2009
UI - Skripsi (Open)
Sumamur P. K., author
Departemen Kesehatan, 1987
Buku Teks