Coba jelasin Rujukan dari Formasi Gula dalam bahasa melayu dong

Kamaluddin Hassan, 1989. Significance of palynology in Late Quaternary sediments in Peninsular Malaysia. Geological Society of Malaysia Bulletin 24, pp. 57-66.

Kamaluddin Hassan, 1990. A summary of the Quaternary geology investigations in Seberang Prai, Pulau Pinang and Kuala Kurau. Geological Society of Malaysia, Bulletin 26, pp.47-53.

Suntharalingam, T dan Teoh, L.H., 1985. Quaternary geology of the coastal plain of Taiping, Perak. Geol. Suv. Malaysia Quaternary Geology Bulletin 1, 64p.

Suntharalingam, T, 1987. Quaternary geology of the coastal plain of Beruas, Perak. Geol. Survey Malaysia Quaternary Geology Bulletin 2, 70p.

The Malaysia-Thailand Border Joint Geological Survey Committee (MT-JGSC), 2006. Geology of the Batu Melintang - Sungai Kolok transect area along the Malaysia - Thailand border. Minerals and Geoscience Department Malaysia.

The Malaysia-Thailand Border Joint Geological Survey Committee (MT-JGSC), 2009. Geology of the Bukit Batu Putih - Satun transect area along the Malaysia - Thailand border. Minerals and Geoscience Department Malaysia.