Kittima Trowattana. 1988. Determination of sediment delivery ratio for watersheds in northern Thailand. Graduate School, Kasetsart University;
Kittima Trowattana. (1988) Determination of sediment delivery ratio for watersheds in northern Thailand . Kasetsart University/Bangkok.
Kittima Trowattana. Determination of sediment delivery ratio for watersheds in northern Thailand. . Bangkok:Kasetsart University, 1988.
Kittima Trowattana. (1988) Determination of sediment delivery ratio for watersheds in northern Thailand . Kasetsart University/Bangkok.