Gaya APA

Sulistiono, A., Hafita, Y, A. (2020). Buku Ajar English for Shipping Management (1). Medan: LARISPA INDONESIA.

Gaya MLA

Sulistiono, Agus., Hafita, Yuniar, Ayu. "Buku Ajar English for Shipping Management". 1 Medan: LARISPA INDONESIA, 2020. Text.