column
        
          
      
    
            2018, 16(1): 16-23.
            
                DOI: 10.11989/JEST.1674-862X.61103123
            
        
        
    
            2018, 16(1): 37-44.
            
                DOI: 10.11989/JEST.1674-862X.602041
            
        
        
    
            2018, 16(1): 57-68.
            
                DOI: 10.11989/JEST.1674-862X.6032519
            
        
        
    
            2018, 16(1): 74-78.
            
                DOI: 10.11989/JEST.1674-862X.61019110
            
        
        
    
                

