<p>Khaing, op. cit., pp. 356-357.</p>

<p>Boserup, op. cit., p. 219.</p>

<p>Ibid., p. 50.</p>

<p>Ibid., p. 34.</p>

<p>Ibid., p. 25.</p>

<p>Ibid., p. 42.</p>

<p>Margaret Mead, ed., Cultural Patterns and Technical Change (New York: Mentor Books, 1955), p. 30.</p>

<p>Ibid., p. 366.</p>

<p>Vreede-de Stuers, op. cit., p. 382.</p>