Rwber naturiol: Gwahaniaeth rhwng fersiynau
Cynnwys wedi'i ddileu Cynnwys wedi'i ychwanegu
Rescuing 3 sources and tagging 0 as dead.) #IABot (v2.0.8 |
Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8 |
||
Llinell 8:
*[https://web.archive.org/web/20010615081114/http://www.zrunek.at/download/Bestaendigkeitsliste.pdf Llawlyfr Gwydnwch Cemegol] (Almaeneg)
*[http://www.irrdb.com/IRRDB/NaturalRubber/Default.htm Bwrdd RHyngwladol Ymchwil a Datblygu Rwber] {{Webarchive|url=https://web.archive.org/web/20060116030149/http://www.irrdb.com/IRRDB/NaturalRubber/Default.htm |date=2006-01-16 }} (Saesneg)
*[http://eh.net/encyclopedia/article/frank.international.rubber.market Hanes y diwylliant cynhyrchu rwber rhyngwladol, o 1870-1930] {{Webarchive|url=https://web.archive.org/web/20070927185451/http://eh.net/encyclopedia/article/frank.international.rubber.market |date=2007-09-27 }} (Saesneg)
*[http://www.lgm.gov.my Bwrdd Rwber Malaysia]
*[http://www.rubberboard.org Bwrdd Rwber India] {{Webarchive|url=https://web.archive.org/web/20070927211118/http://www.rubberboard.org/ |date=2007-09-27 }}
| |||