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Documents Accessed

• Paribesh-O-Bigyan-VIII
• Paribesh-O-Bigyan-VI
• History-VII
• History-VI
• Geography-VIII
• Geography-VI
• General-Science-VII
• Atit-O-Aitihya-VIII
• Amader-Prithibi-VII
• Amader-Paribesh-V
• Amader-Paribesh-IV