Professional Book Publishers. (2019). Copyright Act 1957 along with Copyright Rules, 2013 & International Copyright Order, 1999. Professional Book Publishers.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Professional Book Publishers. Copyright Act 1957 Along with Copyright Rules, 2013 & International Copyright Order, 1999. Delhi: Professional Book Publishers, 2019.
MLA -ийн эшлэл (9 дэх хэвлэлт)Professional Book Publishers. Copyright Act 1957 Along with Copyright Rules, 2013 & International Copyright Order, 1999. Professional Book Publishers, 2019.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.