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1.
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Tapping tests and bast examination of hevea-plants from selected seed (AVROS Rubberserie No. 32) by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Archief voor de Rubbercultuur 1921
Availability: Not available: RRII Library: Reprints (1).

2.
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Yield figures from legitimate Hevea seedlings in 1929 in the Experimental garden (AVROS Rubber serie No. 78) by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Archief voor de Rubbercultuur Jrg 1929
Availability: Not available: RRII Library: Reprints (1).

3.
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Tapping results amd their observations concerning crosses of Hevea trees in the Experimental garden of Soengei Patjoer by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Archief voor de Rubbercultuur 1929
Availability: Not available: RRII Library: Reprints (1).

4.
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Experimental tapping of Hevea buddings VI. Rubber serie No. 77 (Indonesian) by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Archief voor de Rubbercultuur 1930
Availability: Not available: RRII Library: Reprints (1).

5.
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Yield figures from legitimate Hevea seedlings in 1930 in the Soengei Pantjoer Experimental garden (Rubberseries No.85) by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Archief voor de Rubbercultuur 1932
Availability: Not available: RRII Library: Reprints (1).

6.
Image from Google Jackets
Yield figures from legitimate Hevea seedlings in 1931 in the Soengei Pantjoer Experimental garden (Rubberseries No.90) by
Material type: Text Text; Format: print ; Literary form: Not fiction
Publication details: Archief voor de Rubbercultuur 1932
Availability: Not available: RRII Library: Reprints (1).