Improvement of weak foundation of paddy fields by subsurface drainage system-field studies in the muda irrigation project area-technical bulletin no.18 /
Improvement of weak foundation of paddy fields by subsurface drainage system-field studies in the muda irrigation project area-technical bulletin no.18 /
Tsuneo Yamashita.
- Japan : Tropical Agricultural Research Center, c1984.
- 71 pages : Illustrations ; 26 cm.