Sajap, S., Mohammed Ali, N.A. and Zhang, H. (2022) “Understanding Behaviour and Preference: A Study on Designing Litter Prevention Outdoor Signage”,
KUPAS SENI: Jurnal Seni dan Pendidikan Seni, 10(1), pp. 50–58. doi:
10.37134/kupasseni.vol10.1.6.2022.