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Gaya APA

Lumbantoruan, D, M. (1997). Ensiklopedi ekonomi, bisnis, & manajemen 2 P-Z (Cetakan Kedua). Jakarta: PT. Delta Pamungkas.

Gaya MLA

Lumbantoruan, Dra., Magdalena. "Ensiklopedi ekonomi, bisnis, & manajemen 2 P-Z". Cetakan Kedua Jakarta: PT. Delta Pamungkas, 1997. Text.