Shu Yeoh Khoon and Lai Kok Hoong
Quarry Site Investigation at Bukit Ridan, Pahang Tenggara : RAK (C11) - No. E(G) 2/1975 - 1975
Quarry Site Investigation at Bukit Ridan, Pahang Tenggara : RAK (C11) - No. E(G) 2/1975 - 1975