TY - BOOK TI - Namukku kelkkan kazhiatha sabdangal U1 - 534 PY - 1973/// CY - Thiruvananthapuram PB - Kerala Bhasha Institute KW - Sound And Related VibrationsGENERAL IDEAS, MULTISECTOR MODELS, A CANONICAL FRAME WORK, MECHANICS OF MODEL CONSTRUCTION, MAHALANOBIS ONE SECTOR AND TWO SECTOR MODELS, TWO PIONEERING MODELS, FOUR PROJECTION MODELS, SOME AGGREGATIVE EXERCISE, THREE POLICY MODELS, THE FIFTH PLAN MODELS, USEFULNESS OF PLAN MODELS ER -