Guide to Farming Resources Manually
Gathering Nodes by Planet
Onderon (Esp. Archaeology, Slicing, and Bioanalysis)
Mek-sha (Esp. Scavenging and Slicing)
Bioanalysis and Scavenging enable you to "harvest" the bodies of Strong, Elite, and Champion rated enemies. On planets with the appropriate node grade it is recommended to farm those kills over node hunting. Often, the nodes will also be mixed with said enemies making for an easy way to increase resource gain.