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7
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Evaluation of the 1967 population census in Rungwe (Tanzania) / by K. de Jonge and J.J. Sterkenburg.
- 864.7
- Afrika-studiecentrum,
- 1971.
- Leyden :
-
Factors determining the growth of the Rungwe coffee industry / by J.J. Sterkenburg.
- 864.7
- Afrika-studiecentrum,
- 1970.
- Leyden :
-
Occupation and absenteeism of tea growers in relation to the quality of the tea plot : an analysis of smallholder tea schemes in the schemes in the Rungwe district / by J.J. Sterkenburg and A. Tempelman.
- 864.7
- Afrika-studiecentrum,
- 1969.
- Leyden :
-
A planning survey of the Rungwe district / by H.A. Luning and J.J. Sterkenburg.
- 864.7
- Afrika-studiecentrum,
- 1970.
- Leyden :
-
Some remarks on agricultural mechanization / by J.J. Sterkenburg.
- 864.7
- Afrika-studiecentrum,
- 1970.
- Leyden :
-
An executive plan for agricultural development in Rungwe district (1971-'79) / by H.A. Luning and J.J. Sterkenburg.
- 864.7
- Afrika-studiecentrum,
- 1971.
- Leyden :
-
An executive plan for agricultural development in Rungwe district (1971-'79) / by H.A. Luning and J.J. Sterkenburg.
- 864.7
- Afrika-studiecentrum,
- 1971.
- Leyden :