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Transitional upland rice cropping systems in Northern Thailand: Priorities for research and development, on the basis of on-farm crop diagnosis. Van Keer Koen, Trébuil Guy. 2017. In : Shifting cultivation policies: Balancing environmental and social sustainability. Cairns Malcolm (ed.), Hill Bob (ed.), Kurupunya Tossaporn (ed.). Wallingford : CABI, 777-798. ISBN 978-1-78639-179-7