CARA PENGAWETAN BAHAN MAKANAN

http://dataiptek.blogspot.my/2013/02/Pengawetan-Pangan.html

HOW DO I MAKE MY CAKE LAST FOR A WEEK

http://www.bakerpedia.com/ingredients/artificial-preservatives/

ARTIFICIAL PRESERVATIVE

http://www.bakerpedia.com/ingredients/artificial-preservatives/

SUPERMARKET AND BAKERY BREAD

https://www.choice.com.au/food-and-drink/bread-cereal-and-grains/bread/articles/bread-guide

THE BREAD PRESERVATIVE

http://fedup.com.au/factsheets/additive-and-natural-chemical-factsheets/280-283-propionic-acid-and-its-salts-the-bread-preservative

PENGAWET ROTI

http://fedup.com.au/factsheets/additive-and-natural-chemical-factsheets/280-283-propionic-acid-and-its-salts-the-bread-preservative

FINE ORGANIC

http://www.fineorganics.com/romobanshowcase

KADAR KALSIUM PROPIONAT

http://www.bimbingan.org/kalsium-propionat-adalah.htm

KALSIUM PROPIONATE

http://lindamahlisa02.blogspot.my/2014/05/normal-0-false-false-false-en-us-x-none_757.html

ROTI TAK TAHAN LAMA

https://www.mail-archive.com/milis-nakita@news.gramedia-majalah.com/msg08487.html

KERUSAKAN DAN PENGAWETAN ROTI

http://lnuraida.staff.ipb.ac.id/kerusakan-dan-pengawetan-roti/

PENGAWET ROTI

http://kursussakura.blogspot.my/2012/11/bahan-pengawet-bahan-pengembang-dll.html