Tiparpa Ratisurakarn และ Adis Israngkura. (2019) Estimating economic value of forest ecosystem services : a meta-analysis. National Institute of Development Administration:ม.ป.ท.Tiparpa Ratisurakarn และ Adis Israngkura. 2019. Estimating economic value of forest ecosystem services : a meta-analysis. ม.ป.ท.:National Institute of Development Administration;Tiparpa Ratisurakarn และ Adis Israngkura. Estimating economic value of forest ecosystem services : a meta-analysis. ม.ป.ท.:National Institute of Development Administration, 2019. Print.