Wolf - Ruediger Engelke และผู้แต่งคนอื่นๆ. (2006) An Assessment of Pico Hydro as an Option for Off-grid Electrification in Lao PDR: case study of Thapene village. <i>International Journal of Renewable Energy</i>, <i>Vol. 1</i>(No.2), pp 55-62.Wolf - Ruediger Engelke และผู้แต่งคนอื่นๆ. "An Assessment of Pico Hydro as an Option for Off-grid Electrification in Lao PDR: case study of Thapene village". International Journal of Renewable Energy Vol. 1 (2006):pp 55-62.Wolf - Ruediger Engelke และผู้แต่งคนอื่นๆ. An Assessment of Pico Hydro as an Option for Off-grid Electrification in Lao PDR: case study of Thapene village. School of Renewable Energy Technology:ม.ป.ท. 2006.