Gaya APA

Goldschlager, M, J, G, N. (1990). Elektrokardiografi : Electrocardiography: essentials of interpretation . Jakarta: Widya Medika.

Gaya MLA

Goldschlager, Mervin, J., Goldman,, Nora. "Elektrokardiografi : Electrocardiography: essentials of interpretation". Jakarta: Widya Medika, 1990. Text.