Depkes. RI, 1992
Buku Teks
Hary Lesmana, author
Fakultas Hukum Universitas Indonesia, 2008
UI - Skripsi Open
Ardis, Patrick M., author
McGraw-Hill , 1987
Buku Teks
White, Edwin Harold
Prentice-Hall, 1980
Buku Teks
Ocleydis Prinzenda Quintivo Ratulangi, author
2020
UI - Skripsi Membership