Hassan, S. H. (2009). Construction waste management methods used by contractors in the Northern Region / Siti Hafizan Hassan ... [et al.]. Universiti Teknologi MARA, Pulau Pinang & Pusat Penerbitan Universiti (UPENA).
Παραπομπή σε μορφή Chicago (17η εκδ.)Hassan, Siti Hafizan. Construction Waste Management Methods Used by Contractors in the Northern Region / Siti Hafizan Hassan ... [et Al.]. Universiti Teknologi MARA, Pulau Pinang & Pusat Penerbitan Universiti (UPENA), 2009.
Παραπομπή σε μορφή MLA (9th εκδ.)Hassan, Siti Hafizan. Construction Waste Management Methods Used by Contractors in the Northern Region / Siti Hafizan Hassan ... [et Al.]. Universiti Teknologi MARA, Pulau Pinang & Pusat Penerbitan Universiti (UPENA), 2009.
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