Assistive device enquiry contact number 01142411015
He thanks to Amader Vaani because he get Braille stick and braille contraction book and manoranjan mondal help her to get this
Information about Music Ball for persons with vision impairment
Braille contraction part 6
Braille contraction part 5
Braille construction part 4
braille contraction part 3
discussion about braille system included in the printing industry
Answer how to fix time on braille watch
information about taking watch