First, read the English article below.

You will need to figure out how many respondents you need and how to keep the process as free of selection bias as possible. It is generally best to go with random selections of participants or an all-inclusive approach based on demographics.  For example, Pew Research limits their international interviews to 1,000 persons per country. This may seem like a small number but it allows them to cover more countries.  Be realistic about how many people you can feasibly interview or survey in your given time period and with your available resources. Good data does not necessarily mean more surveys. If you are operating out of a university or business setting, you may need to approach your institutional review board (IRB) and have them sign off on your research. This is generally the case because survey research requires interaction with human subjects. During the IRB review process you will need to provide as much information as possible about your survey objectives and methodology. Don’t forget to factor in the cost of your survey, if going beyond the classroom and gathering scientific data. You can submit a grant application to funding agencies at the local, state, or federal levels. You can also approach field-specific organizations. To get an idea as to cost a phone survey, for example, can cost up to $40 per contact. This is one of the most preferred ways of communicating now, so it makes sense as a survey delivery option. It is quick and generally cheap to do, even if you need to purchase an email list. You can generally reach a particular target audience and ask them to complete the survey within the email or direct them to another site. The downside is that it is very easy for respondents to delete emails. This is an old-fashioned, but still used, method of survey contact. You will mail out your questionnaires to your survey sample addresses. This method allows you to cover a wide geographical range and it is also a friendly method for older respondents who are less comfortable using email and the like.... 

Now, please write a short abstract for it in Indonesian. Abstract:
Tentukan besaran sampel yang akan digunakan. Jika perlu, dapatkan persetujuan dari komite etik yang berwenang. Dapatkan sponsor. Hubungi responden melalui surel untuk opsi survei yang lebih cepat. Hubungi responden melalui pos jika Anda lebih suka menggunakan metode yang tradisional. Hubungi responden melalui telepon jika Anda memiliki nomor teleponnya. Jika dana yang Anda miliki cukup besar, bekerja samalah dengan firma riset untuk melakukan survei tersebut. Pantau pewawancara yang Anda tugaskan. Ikuti aturan yang berlaku di negara Anda. Gunakan hasil survei untuk kepentingan profesional.