Post your classified ad to several local advertising sites. Many online sites offer free ads, but you will likely have to pay to post in the local newspaper.  Try Craigslist, Yahoo! Local, and Angie’s List.  See if your city has its own community site where you can place ads for local services. For online ads, you may have to go back and repost the ad regularly to ensure that people see it. Check back to see if your ad comes up easily when you click on the classifieds. Hang your flyers in local libraries, near the local school, and in popular establishments that are frequented by teens and families, such as pizza restaurants, ice cream shops, and coffee shops.  Ask the local school if you can post your flyers in the counselor’s office or in the school library. You may also find places that will allow you to leave flyers. For example, some coffee shops have a table where people can leave or take flyers. Carry your business cards with you so that you can hand them to potential clients. In addition to handing out the business cards, leave your business cards and your brochures at school counseling offices, in libraries, coffee shops, and other places that allow people to leave or post business cards. Look for community bulletin boards at places like the library or coffee shops. Pin up a few business cards. Join local groups on social media and post about your services. You can look for parents groups, study groups, and groups that are dedicated to the local schools. Your city or town may also have a social media group that allows locals to advertise services, so look for those as well. Look for homeschooling groups.

TL;DR in Indonesian:
Pasanglah iklan melalui internet. Pasanglah selebaran di berbagai tempat. Bagikan kartu nama dan brosur. Unggahlah iklan di media sosial.