SINGH LAKMIR. (2021). SCIENCE FOR NINTH CLASS PART 2 CHEMISTRY (2021.). S.CHAND.
Chicago-čujuhus (17. p.)SINGH LAKMIR. SCIENCE FOR NINTH CLASS PART 2 CHEMISTRY. 2021. NEW DELHI: S.CHAND, 2021.
MLA-čujuhus (9. p.)SINGH LAKMIR. SCIENCE FOR NINTH CLASS PART 2 CHEMISTRY. 2021. S.CHAND, 2021.
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