A. A. A. D. Andriyani, K. Saddhono, and E. T. Rahayu, “Gradation of Japanese Honorifics ‘Keigo’ as a Communication Strategy of Tourism Business Players in Bali”, Psychosocial rehabilitation, vol. 24, no. 8, pp. 2327–2339, Oct. 2020, doi: 10.61841/6r93wa88.