Liu, P. (2004). Production and export of organic fruit and vegetables in Asia: Proceedings of the seminar held in Bangkok, Thailand, 3-5 November 2003. Rome, Italy: FAO.

Liu, Pascal. Production and Export of Organic Fruit and Vegetables in Asia: Proceedings of the Seminar Held in Bangkok, Thailand, 3-5 November 2003. Rome, Italy: FAO, 2004.

Liu, Pascal. Production and Export of Organic Fruit and Vegetables in Asia: Proceedings of the Seminar Held in Bangkok, Thailand, 3-5 November 2003. Rome, Italy: FAO, 2004.