http://repository.uhamka.ac.id/id/eprint/12976/
Analysis Contens of Natrium Benzoate and Sorbic
AcidIn Beverage Snack Sold at SDN Karang Tengah
Tangerang City
Yusuf, Yusnidar
http://repository.uhamka.ac.id/id/eprint/12976/1/4026-4031_IJPR1301622.pdf