“Kind of Aromatherapy Use and Smoking Habits Were Influence the Alteration of the Driver’s Pulse Rate: Efektivitas Penggunaan Aromaterapi terhadap Frekuensi Denyut Nadi pada Supir Bus”, J Keskom, vol. 4, no. 1, pp. 22–25, Nov. 2018, doi: 10.25311/keskom.Vol4.Iss1.172.