NugraheniS. R. W., Widyastutik, Syarifah Amaliah, Iskandar Panjaitan, Ika Yulisyawati, and Florika Malau, “Strategy to Improve the Competitiveness of Indonesian Construction Services Sector : IPB University, Ministry of Trade”, JEKP, vol. 10, no. 2, pp. 176-200, Dec. 2021.