[1] Univ Teknol MARA, Fac Hotel & Tourism Management, Puncak Alam, Malaysia
[2] Salak Hospitality, Hotel Salak Heritage, Bogor, Indonesia
[3] Univ Teknol MARA, Inst Biodivers & Sustainable Dev, Shah Alam, Malaysia
[4] Univ Pendidikan Indonesia, Sch Postgrad, Bandung, Indonesia