| gonpta.com | NPTA. National Paper Trade Association |
| fiberclaycouncil.org | The Fiberclay Council |
| afandpa.org | American Forest and Paper Association |
| stanford.edu | Institute Of Paper Conservation |
| fipago.org | International Federation of Manufacturers of Gummed Paper |
| tecnicelpa.com | Tecnicelpa |
| tappi.org | TAPPI. Technical Association of the Pulp and Paper Industry |
| pima-online.org | Paper Industry Management Association (PIMA) |
| paperhistory.org | IPH. International Paper Historians |
| paperchemicals.co.uk | PCA. Paper Chemicals Association |
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