Pitsamai Rummavas. 1989. Changes in characteristics of soils at 50-centimeter depth after passing with domestic wastewater in horizontal directions. Graduate School, Chulalongkorn University;
Pitsamai Rummavas. (1989) Changes in characteristics of soils at 50-centimeter depth after passing with domestic wastewater in horizontal directions . Chulalongkorn University/Bangkok.
Pitsamai Rummavas. Changes in characteristics of soils at 50-centimeter depth after passing with domestic wastewater in horizontal directions. . Bangkok:Chulalongkorn University, 1989.
Pitsamai Rummavas. (1989) Changes in characteristics of soils at 50-centimeter depth after passing with domestic wastewater in horizontal directions . Chulalongkorn University/Bangkok.