Maksum, Ali, 		Purbowati, ike, 		wijonarko, gunawan, AND 		anggriawan, rian.
" Optimization of Phenol Levels from Phycoerythrin of Gracilaria verrucosa with Freeze Thaw using Response Surface Methodology" <em>Journal of Agricultural and Biosystem Engineering Research</em> [Online], Volume 3 Number 1 (24 August 2022)