had some computer issues at first, but finely changed computers.
Very useful, it is a must to be certify.
THANK YOU, FOR THE OPPORTUNITY
Wish I could just read at my own pace and move on
ES UN CURSO FASCINANTE Y DE FACIL COMPRENCION MIL GRACIAS
Thank You for the opportunity, I learned a lot with course
Learned things I did not know. Thanks.
Informative. Good course.
IT WAS GREAT EXPERIENCE TAKING THE COURSE IN THESE WEBSITE. THANK YOU FOR THE OPPORTUNITY
taking this course has most definitely increase my knowledge about the risk of working with Silica materials and will better help me reduce my chances of being affected by these types of materials. thank you for all the useful videos and helpful materials within this course.