| Reference | {Deposit:: TIMAH LANGAT BERHAD 1981 ANNUAL REPORT.}{Deposit:: TIN INTERNATIONAL STATISTICAL SUPPLEMENT AUGUST 1982.}{Deposit:: MINING ANNUAL REVIEW 1975 AND 1974.}{Deposit:: WORLD TIN MINING, INTERNATIONAL TIN COUNCIL PUBLICATION 1982}{Deposit:: EDITION.}{Deposit:: YEAP CHENG HOCK, THE KUALA LANGAT TIN FIELD, FIFTH WORLD}{Deposit:: CONFERENCE ON TIN 19-23 OCTOBER, 1981, KUALA LUMPUR.}{Deposit:: KUMPULAN PERANGSANG SELANGOR BERHAD (KPS) INVESTMENT}{Deposit:: STRUCTURE, MARCH, 1979.} |