Cita APA (7th ed.)

(2018). A pioneer's golden anniversary: : Sarawak Oil Palms Berhad 50th anniversary 1968-2018. Sarawak Oil Palms Berhad.

Cita Chicago (17th ed.)

A Pioneer's Golden Anniversary: : Sarawak Oil Palms Berhad 50th Anniversary 1968-2018. Miri, Sarawak: Sarawak Oil Palms Berhad, 2018.

Cita MLA (8th ed.)

A Pioneer's Golden Anniversary: : Sarawak Oil Palms Berhad 50th Anniversary 1968-2018. Sarawak Oil Palms Berhad, 2018.