https://sites.google.com/view/muruganpattusamy/home
https://sites.google.com/view/muruganpattusamy/resources
https://www.youtube.com/channel/UCrP_PasV5jgF8_F7NrbPPaQ
https://www.youtube.com/channel/UCCAzXGxhK61XcTsgp-VS5nw
https://online2pdf.com/pdf2pdf
https://obsproject.com/
https://www.ilovepdf.com/
https://new.edmodo.com/
https://hotpot.uvic.ca/
https://www.slideshare.net/jalpashah12