Alaamshani, I.K. , Hamzah, H.Z. , Kaliappan, S.R. and Ismail, N.W. 2022. Effects of Trade Facilitation on Trade Costs in Developed and Developing Countries: PPML Analysis. Institutions and Economies. 14, 2 (Apr. 2022), 31–58. DOI:https://doi.org/10.22452/IJIE.vol14no2.2.