Arana, J. J. S. (2016). Carrageenan introduced as plant food supplement at NCPC's 40th anniversary. U.P. News.
Chicago Style (17. basım) AtıfArana, Jessa Jael S. "Carrageenan Introduced as Plant Food Supplement at NCPC's 40th Anniversary." U.P. News 2016.
MLA (9th ed.) AtıfArana, Jessa Jael S. "Carrageenan Introduced as Plant Food Supplement at NCPC's 40th Anniversary." U.P. News, 2016.
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