Sayavong, S., Kaewjampa, N., Katawatin, R., Boonthai Iwai, C., Moukomla, S., Oszwald, J. and Pierret, A. 2019. Mapping rubber stand ages in Luangnamtha district (Northern Laos) using NDVI and LSWI from Landsat images. Asia-Pacific Journal of Science and Technology. 24, 2 (Jun. 2019), APST–24. DOI:https://doi.org/10.14456/apst.2019.18.