Siahaan, I. O., C. F. Sembiring, and F. M. Hutajulu. “THE EFFECT OF MARKETING MIX ON PURCHASING DECISION OF TUPPERWARE PRODUCTS AT SLD HUSNUL BAROKAH”. Fundamental Management Journal, Vol. 7, no. 1p, Apr. 2022, pp. 101 -22, doi:10.33541/fjm.v7i1p.3886.