KRISTIANTO, L. (1997). English for special purposes convertational approach Telephone. Visipro.
Chicagoスタイル(17版)引用形式KRISTIANTO, Lanny. English for Special Purposes Convertational Approach Telephone. Jakarta: Visipro, 1997.
MLA(9版)引用形式KRISTIANTO, Lanny. English for Special Purposes Convertational Approach Telephone. Visipro, 1997.
警告: この引用は必ずしも正確ではありません.