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304 responsibility.
Therefore, participation
reflects one’s
implementation  of  what  heshe  knows  and  how  heshe  behaves towards  something.  This  means  that  knowledge  and  attitude  are
both  perfected  by  practice  as  it  is  the  realization  that  either  the person himherself or others could evidently observe.
For  example,  realizing  the  importance  of  trees  in  the forest  in  the  process  of  absorbing  water  to  void  flood  one  may
have a positive attitude towards forestation. However, the attitude will  be  meaningful  if  it  is  accompanied  with  a  good  action  as  to
contribute  to  forestation,  possibly  ranging  from  the  smallest portion of participation, such as telling others not to devastate, to
the largest  one,  such  as  stopping  and banning illegal logging, or at least green your own home yard.
7. Conclusion
A sustainable city concept needs basic requirements that have  to  be  completed.  On  one  had,  the  government  at  the  first
place  have  to  consider  enabling  factors  such  as,  social,  politic, economic,  and  environment.  The  government  should  promote
and  facilitate  the  city  to  achieve  the  goal  of  sustainable  city.  On the  other  hand,  as  an  individual  action,  a  city  residents  have  a
great capability to  conduct their role as a part of the achievement process  as  long  as  they  are  agree  to  develop  their  knowledge,
attitude and practice to support their green behavior.
As  many  as  300  respondents  ages  ranging  from  18  to 40  will  be  involved  in  this  research.  They  will  be  divided  into
three groups according to the circles of the city: the first, second, and third circle. Each circle will be represented by 100 randomly-
taken  respondents.  A  questionnaire  consisting  of  knowledge, attitude,  and  practice  items  will  be  administered  to  obtain  the
data.
Likert’s scale will be used which means that in every item there  will  be  four  options  for  the  respondents  to  choose.  Each
option is scored differently from others, ranging from 1 to 4. Score 1  shows  the  least  suited  response  and  score  4  the  most  suited
one.
When the respondents have returned the questionnaires, all the answers will be scored. The average score will be counted,
first  of  all,  internally  based  on  the  city  circle  in  which  the respondents  live.  This  is  to  differentiate  the  results  of  the  three
circles and to find out people of which circle perform the best. And then,  the  accumulation  of  the  scores  of  all  respondents  will  be
obtained to deduce a result of the whole sample. Percentages in relation  to  the  responses  to  knowledge,  attitude,  and  practice
questions  will  be  revealed  in  order  to  help  with  the  drawing  of conclusions.
and Manifestation, Medan, 13
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305
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