Courses by Sri Lanka Standards Institution (SLSI) / Courses in Sri LankaSLSI April 2022 Training Programmes – Sri Lanka Standards Institution April 17, 2022April 17, 2022 Date – 2022-04-21/22/26/27/28/29 Here you can see the English Advertisement… ad-en-20220406-1 English AdvertisementDownloadSource – Daily News (2022.04.06)