Singh Trilokinath, . (1979). सुगम भाषा विज्ञान. Lukhnow: Kalpkar Publication.
Singh Trilokinath, . 1979. सुगम भाषा विज्ञान. Lukhnow: Kalpkar Publication.
Singh Trilokinath, . सुगम भाषा विज्ञान. Lukhnow: Kalpkar Publication. 1979.