Report Number: 530 Soil Survey of Utan Plantation, Wanigela, Oro Province, 26pp. Maps 530 & 530B. Includes map with scale 1:25,000
Report Number: 533 Final Report for Proposed Small Holder Cocoa Projects, Wewak, East Sepik Province, 16pp., with Preliminary report for Proposed Cocoa Sites, Wewak, 2pp. [No map on file.]
Report Number: 536 Soil Survey and Land Evaluation for Commercial Citrus Production in the Arona Valley, Eastern Highlands Province, DPI Technical Report 87/8, 39pp. Includes map with scale 1:25,000
Report Number: 537 Manne Island Site Inspection, 11pp.
Report Number: 538
Katambang [Katabong] and Lamawan Plantations Site Inspection, 12pp.
Report Number: 544 Luvi Cocoa Block-B. Land Evaluation. Includes map with scale 1:500,000
Report Number: 544 Patanga Cocoa Block-D. Land Evaluation. Includes map with scale 1:500,000
Report Number: 544 Isu Cocoa Block-G. Land Evaluation. Includes map with scale 1:500,000
Report Number: 546 Tonolei Soil & Land Use Potential. Includes map with scale 1:25/50,000