Go down your list and use the market research you have done to determine competitive advantages. Some may offer promotions, bundles, free shipping, extra services and more. You should have a good idea of whether these competitors offer exactly the same thing, or a slightly different product. Knowing your competitive advantages and weaknesses relative to your key competitors gives you a leg up in crafting your local marketing campaign. This is important in determining how their entire sales process works. In some businesses, such as retail merchandise, this will be easier than others. If you do not have the option to analyze the competition from website through sale, then you should read reviews and peruse the Better Business Bureau website. There are numerous web tools that allow you to track how often a business gets searched for on the internet, and what people's keywords were. Some are free, and higher powered versions cost money. It is useful to know where people are located when they are accessing your competitors' webpages, and what time of day.  The so-called sales process consists of determining what you will sell, the demand, the valuation, and how you will deliver the good or service. Having an idea of your key competitors’ thought process at each stage of the sales process helps you determine your and their competitive advantage.  If you are looking at local companies that offer the same thing, you may be able to call them and inquire about their sales practices. Do not to mislead them into thinking you are a buyer, as this is considered a somewhat unethical business practice. Look at your competitors’ social media pages to get an idea of their marketing strategies. Your competitors may advertise specials and give people a chance to tell them what they liked and didn't like. Since this is a platform intended for anyone to use, there is not anything unethical about doing this kind of research. It is important to be well versed on your competition at all times, since businesses are always changing...

TL;DR in Indonesian:
Tentukan keunggulan kompetitif pesaing. Investigasi proses penjualan pesaing. Gunakan peranti lunak bisnis untuk memantau kesuksesan pesaing. Daftarkan diri untuk menerima katalog, surat, atau surel pesaing. Bandingkan diri sendiri dengan para pesaing. Carilah perusahaan-perusahaan yang memiliki keunggulan kompettitif. Tentukan apakah Anda memiliki penghalang untuk bersaing dengan unit-unit bisnis lain.