Tiri Kuimbakul, Coffee Report No.33, Goroka, Coffee Industry Corporation Ltd, Industry Affairs Division, Jul 1994, 31pp.
Tiri Kuimbakul, Coffee Report No.32, Goroka, Coffee Industry Corporation Ltd, Industry Affairs Division, Mar 1994, 36pp.
Tiri Kuimbakul, A cost-benefit study on the use of mobile coffee hullers in remote areas of Papua New Guinea and their regulatory implications, Coffee Discussion Paper No.11, Goroka, Coffee Industry Corporation Ltd, Industry Affairs Division, Jul 1993, 10pp.
The economics of small holder coffee production: analysis, policy and future research directions, Coffee Discussion Paper No.6, Goroka, PNG Coffee Industry Board.
The economics of small holder coffee production: analysis, policy and future research directions, Coffee Discussion Paper No.6, Goroka, PNG Coffee Industry Board.