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Peraturan-peraturan tanah Perak, 1966 : The Perak land rules, 1966
Published 1974“…Ipoh Jabatan Cetak Kerajaan…”
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34
Exploitation of industrial minerals from abandoned tin mining areas in Perak and Selangor/
Published 1980“…Ipoh : Jabatan Penyiasatan Kajibumi,…”
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35
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36
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Clay deposit near kampung Layang-Layang, Parit, Perak/
Published 1979“…Ipoh : Jabatan Penyiasatan Kajibumi,…”
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38
Preliminary kaolin investigation in Tapah - Bidor area, Perak/
Published 1978“…Ipoh : Jabatan Penyiasatan Kajibumi,…”
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39
Limestone quarries in the Kinta district - a look at the exploitation of rock resources/
Published 1978“…Ipoh : Jabatan Penyiasatan Kajibumi,…”
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40
Silica sand deposit at Bukit Senyamok, Dungun, Terengganu/
Published 1979“…Ipoh : Jabatan Penyiasatan Kajibumi,…”