Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MURATA Tomio,Managerial and Technical Considerations on Hog Production Costs,Nihon Chikusan Gakkaiho,1346907X,Japanese Society of Animal Science,1974,45,8,433-439,https://cir.nii.ac.jp/crid/1390282680168091776,https://doi.org/10.2508/chikusan.45.8_433