2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/82812We show that signs of pole residues $λ_N, λ_Λ, λ_Σ, λ_Ξ$ for ${1\over2}^+$ octet baryons are identical in the QCD sum rule approach. To do this we compare signs of meson-baryon coupling constants $ g_{KN Λ}, g_{KN Σ}$, $g_{πΛΣ}$ and $g_{KΛΞ}$ each other.Latex, 5 pages. Talk given at the 10th Summer School and Symposium on Nuclear Physics : QCD, Light cone Physics and Hadron Phenomenology (NuSS'97), Seoul, Korea, 23-28 Jun 1997Nuclear Theorytext