譚義績

水田犁底層形成因素之試驗研究 = = Experimental study on the formation of plow sole in puddle rice field / by: 劉振宇 ((地質學)); 譚義績 (Language materials, printed)

耕犁與夯實對土層入滲影響之試驗研究 = = Experimental study onthe infiltration rate of soil layers by plowing andcompacting / by: 劉振宇 ((地質學)); 譚義績 (Language materials, printed)