Courses by Sri Lanka Standards Institution (SLSI) / Courses in Sri LankaSLSI May 2022 Training Programmes – Sri Lanka Standards Institution April 26, 2022April 26, 2022 Date – 2022-05-04/05/11/12/13 Here you can see the English Advertisement… ad-en-20220426-1 English AdvertisementDownloadSource – Daily News (2022.04.26)