The research has been carried out in the laboratory scale to create and assess the ability of membrane cellulose from nata. Nata was produced from coconut-water and nira aren with a ratio 100%: 0%, 0%:100% and 50%:50%, which fermented with the…
This research has been carried out in cellulose membrane production from bacterial cellulose. Bacterial cellulose is produced from the fermentation process. The purpose of this study was to analysis the effect of cmc, glycerol and fermentation time…
Abstract Implementation problem solving as an approach in teaching mathematics besides aiming to improve problem-solving skills can also improve students' critical thinking mathematically. In practice, the application of problem solving approach…