Harti, Raya Sulistyowati, Tri Sudarwanto, Septyan Budi Cahya, Veni Rafida, and Tareq Furas. “Does Impact of Using an Online Learning on Salesmanship Course in The Era Covid 19 Pandemic?”. IJORER : International Journal of Recent Educational Research 2, no. 3 (May 31, 2021): 365-371. Accessed August 3, 2025. https://journal.ia-education.com/index.php/ijorer/article/view/114.