Article in English: Start your proposal like you would start a letter: with a short paragraph summing up that you want to do the work for the client and that you are the best candidate for the job (you'll get to the specifics later). Here, it's OK to be somewhat "warm" and personal in your tone, though you should always stay professional.  Mention the client by name. If you're on friendly names, first names are fine. Otherwise, use "Mr." or "Mrs." You're trying to show the client that this proposal is specifically tailored to him or her. See our sample documents below for specific examples of what's needed in each proposal. Draw from the discussions you have already had regarding the job to show your client, in a few sentences, that you know what you need to do. Show that you understand the problem that needs solving, the duties the client expects you to perform, and the scope of your work (one-time gig, long-term, etc.). Be specific about the job here, but don't dwell on precise details like money, hours, and so on - you'll get to this later. Here, you're trying to sell yourself as the best possible person for the job. Draw attention to things like your training, your experience, and jobs you've done in the past that have gotten positive feedback. You can also reference your attitude and values, though these should take a back seat to more concrete qualifications. Remember that you may be in competition with other consultants. Try to paint a picture of how you will provide a measurable benefit to the client in terms of money or time saved. This way, you can give yourself an edge over a competitor with similar or better qualifications who doesn't articulate this as well. List, using strict terminology and specific details, what you will do to solve the client's problem. Pinpoint the exact results the client will see from you consultation. Be specific regarding your methods and time frame here. To avoid problems later, it's also wise to describe what you expect from the client during your work with regards to personnel, access to...

Summary in Indonesian:
Mulailah dengan menyapa calon klien. Sebutkan pekerjaan yang ingin Anda lakukan di paragraf pertama. Di paragraf kedua, jelaskan kualifikasi Anda. Di paragraf berikutnya, jelaskan pekerjaan yang Anda tawarkan. Jelaskan hal-hal yang tidak akan Anda lakukan selama memberikan konsultasi. Ajukan penawaran harga untuk konsultasi yang akan Anda berikan. Akhiri proposal dengan membuat ringkasan.