Books 

• NCERT Lab Manual Class 10 Biology
• NCERT Class 10 Biology Textbook

Websites

• https://ncert.nic.in/pdf/publication/sciencelaboratorymanuals/classX/science/jelm103.pdf (Experiment : 27, Page no: 16) 
• https://ncert.nic.in/textbook.php?jesc1=6-16 (Activity No:6.5, Page no: 9) 
• https://www.biologyonline.com/dictionary/fermentation