Ok Tedi Mining Limited & Ok Tedi Mining Limited. Publicity and Information Section. (1982). Who's who at Ok Tedi. Ok Tedi Mining Ltd.].
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিOk Tedi Mining Limited এবং Ok Tedi Mining Limited. Publicity and Information Section. Who's Who at Ok Tedi. [Port Moresby: Ok Tedi Mining Ltd.], 1982.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিOk Tedi Mining Limited এবং Ok Tedi Mining Limited. Publicity and Information Section. Who's Who at Ok Tedi. Ok Tedi Mining Ltd.], 1982.
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