Singh, P. (2023). Note on the chemistry and trade forms of Lac. Superintendent Government Printing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, Puran. Note on the Chemistry and Trade Forms of Lac. Superintendent Government Printing, 2023.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingh, Puran. Note on the Chemistry and Trade Forms of Lac. Superintendent Government Printing, 2023.
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