1. Jirapornvaree, I., T. Suppadit and A. Popan, 2017. Use of pineapple waste for production of decomposable pots. Int. J. Recycling Organic Waste Agric., 6: 345-350.
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2. Intaravicha, N., P. Prabuddham and A. Popan, 2013. Potential of thai soil on the anaerobic treatment of urban wastewater in the alternate flooding and drying of the soil with plant system. Mod. Applied Sci., 7: 1-10.
3. Dumrongrojwatthana, P., N. Gajaseni, A. Popan, P. Kabklang and S. Riengrojpitak et al., 2009. Impacts of disturbance on floristic and soil properties in deciduous forest, Nam Wa sub-watershed, northern Thailand. J. Sci. Res. Chula. Univ., 34: 49-57.
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4. Pibumrung, P., N. Gajaseni and A. Popan, 2008. Profiles of carbon stocks in forest, reforestation and agricultural land, Northern Thailand. J. Forest. Res., 19: 11-18.
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5. Popan, A., G. Jindaprasert and K. Sivach, 2005. Effect of pasak water dam on soil and land use in pasak river basin. King Mongkut's Agric. J., 23: 14-23.
6. Popan, A., G. Jindaprasert and K. Sivach, 2004. Organic matter content after reforestation. King Mongkut's Agric. J., 22: 51-59.
7. Popan, A., 2000. Soil characteristics and land use planning in southern Thailand. King Mongkut's Agric. J., 18: 36-46.
8. Chindaprasoet, K. and A. Phopan, 2000. Impact of water reservoir on characteristic and distribution of saline soil in discharge area: A case study of Lam Chiang Krai water reservoir, Amphoe Non Thai, Nakhon Ratchasima. King Mongkut's Agric. J., 18: 47-55.
9. Popan, A., 1999. Structural geology and soil on river levee of chao phraya river. King Mongkut's Agric. J., 17: 48-56.
10. Popan, A., 1998. Impact of water reservoir on field soil morphology characteristics and agricultural potential of soil under discharge area in northeast Thailand. J. Ecol., 25: 40-48.
11. Popan, A., 1998. Environmental condition and development of organic soil in Pru Kae Kae Amphoe Panalae Pattani. J. Ecol., 25: 26-35.
12. Popan, A., P. Phimsirikul and G. Jindaprasert, 1997. Properties of volcanic soil in Thailand and Japan. Songklanakarin J., 19: 351-361.
13. Popan, A., 1997. Paddy soil characteristics and soil potential for new agricultural land use programme in Nakhon Sawan province. King Mongkut's Agric. J., 15: 18-27.
14. Popan, A., 1995. Sulfur residual in grape planting area on loei soil series. J. Ecol., 22: 68-72.
15. Popan, A., 1995. Important factors influencing on genesis and development of spodosol soil. King Mongkut's Agric. J., 13: 1-7.
16. Phopan, A., P. Panditto and W. Rattana, 1995. Effect of soil and water quality on coastal aquaculture. King Mongkut's Agric. J., 13: 15-21.
17. Popan, A., 1988. A study on soil characteristics and land use planning in the Mae Klong drainage basin. J. Agric. Technol., 8: 48-56.