Agar, Herbert
The United States: the presidents, the parties & the Constitution/ Herbert Agar
Eyre & Spottiswoode, 1950
Buku Teks
Brandes, Joseph
Herbert Hoover
University of Pittsburgh Press, 1962
Buku Teks
Deden Daelami A.S, author
Agar ikan sehat
Penebar Swadaya, 2001
Buku Teks
Agar produk bisa on terus
Artikel Jurnal
Agar produk meluncur mulus
Artikel Jurnal