Lapian, Stanss Levynna Hermien Verronica Joyce, and Altje Tumbel. “Analysis of Green Marketing Mix Factors On Hotel Industry (Study on Sintesa Peninsula Hotel Manado; Discovery Kartika Plaza Denpasar; Hyatt Regency Yogyakarta; Grand Melia Jakarta)”. International Review of Management and Marketing 8, no. 6 (January 20, 2019): 112–121. Accessed November 8, 2024. https://econjournals.com.tr/index.php/irmm/article/view/7116.