Pulungan, Ismail, author
[publisher not identified], 1992
Buku Referensi
Wisma Aurora Budiman, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1984
UI - Skripsi (Membership)
Sie, Kwat Soen
Centre for Agricultural Publications and Documentation, 1968
Buku Teks
Bustanul Arifin, author
Kompas, 2004
Buku Teks
Schophuys, H.J.
H. Veenman & Zone, 1936
Buku Klasik