khanna, r. (2015). Production and operations management (2nd ed.). phl learning private limited.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)khanna, r.b. Production and Operations Management. 2nd ed. new delhi: phl learning private limited, 2015.
MLA -ийн эшлэл (9 дэх хэвлэлт)khanna, r.b. Production and Operations Management. 2nd ed. phl learning private limited, 2015.