Artikel Jurnal
Narain, Dharm
Asia Publishing House , 1961
Buku Teks
Benedict, Murray R.
Univ. of California Vavision of Agricultural Science , 1960
Buku Teks
Muhamad Hariz Tommy Irmiansyah, author
Fakultas Hukum Universitas Indonesia, 2016
UI - Skripsi (Membership)
Artikel Jurnal