Carrabis, J. (1989). Pemrograman Lanjutan Dbase Iii Plus Joseph-david Carrabis. Erlangga.
Dyfyniad Arddull ChicagoCarrabis, Joseph-David. Pemrograman Lanjutan Dbase Iii Plus Joseph-david Carrabis. Erlangga, 1989.
Dyfyniad MLACarrabis, Joseph-David. Pemrograman Lanjutan Dbase Iii Plus Joseph-david Carrabis. Erlangga, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.