1.
Stupar-Rutenfrans S, de Koff D, van den Elst J. The Effect of Subject Lines on Open Rates of Email Marketing Messages. ASSRJ [Internet]. 2019Jul.24 [cited 2024Nov.29];6(7):181-8. Available from: http://804474.wannyin.cyou/index.php/ASSRJ/article/view/6749