Određivanje neke supstancije u rastvoru upoređivanjem njene boje s bojom rastvora poznate koncentracije iste supstancije ili s bojom nekog određenog sredstva iste boje za upoređivanje.
I am not offering you SEO, neither PPC.
It's something completely different.
Just send me keywords of your interest and I'll give you traffic guarantees on each of them.
Let me demonstrate how it works and you will be surprised by the results.