Untuk diingat

1. PEN ACCESS SOURCES2. Untuk list lengkap ada di :https://delicious.com/ialfjakarta3. ejournals:-doaj.org4. ebooks:doabooks.orgmanybooks.netopenbookpublishers.comgutenberg.org5. eprints:ssrn.comportalgaruda.orgarxiv.org6. thesis& dissertationtesis.pdii.lipi.go.id (indonesia)trove.nla.gov.au (australia)ethos.bl.uk(inggris)dart-europe.eu (eropa)pqdtopen.proquest.com(us)ndldt.orgoatd.org7. alternative search engine:www.wolframalpha.com