Ikhwanuddin Ikhwanuddin Department of Civil Engineering and Planning Education, Faculty of Engineering, Universitas Negeri Yogyakarta, Indonesia Indonesia
Jurusan pend. Teknik Sipil dan Perencanaan FT UNY
Sumarjo H. Department. of Civil Engineering and Planning Education, Faculty of Engineering, Universitas Negeri Yogyakarta, Indonesia Indonesia
V. Lilik Hariyanto Department. of Civil Engineering and Planning Education, Faculty of Engineering, Universitas Negeri Yogyakarta, Indonesia Indonesia
A. Hasan Faculty of Technical and Vocational Education, Universitas Tun Hussein Onn Malaysia, Malaysia Malaysia
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