[To Parent Directory] 5/13/2020 12:17 AM 1402160 twin_40_rama.pdf 5/13/2020 12:17 AM 1330192 twin_flat_40_rama.pdf 3/5/2020 11:12 AM 1296393 twin_lambda_40_rama.pdf 3/5/2020 11:09 AM 1333177 twin_multi_40_rama.pdf