Does anybody knows a textbook, a paper or any lecture notes that discusses the [tex]\phi^3[/tex] interactive field? I use as main reference Ryder's QFT, which discusses only the [tex]\phi^4[/tex] interaction. And most similar textbooks (like Peskin's, Brown's etc.) do so. I have derived the point functions and currently trying to renormalize the [tex]\phi^3[/tex] theory, so I'd like to compare my results with the right ones. Thanx!