Add 4 course on free-courses-id.md (#5713)

* Add 4 course on free-courses-id.md

* fixing linter failed on courses

* add 4 course on free-courses-id.md

* remove kotlin free course on free-courses-id.md

* remove unused line on kotlin

* add 2 kotlin resources on free-courses-id.md

* fixing number of lines on end of section

* add 4 course on free-courses-id.md

Co-authored-by: Muhamad Arif Ar Rijal <>

courses/free-courses-id.md

@@ -141,12 +141,14 @@
 * [Belajar Java - Object Oriented Programming](https://www.youtube.com/playlist?list=PLFfUPa9IV8LpbRH5-TzphcZj6tpoxdr-p) - Mastahcode
 * [Belajar Java - Object Oriented Programming Bahasa Indonesia (Lanjut)](https://www.youtube.com/playlist?list=PLZS-MHyEIRo6V4_vk1s1NcM2HoW5KFG7i) - Kelas Terbuka
 * [Belajar Java Bahasa Indonesia (Dasar)](https://www.youtube.com/playlist?list=PLZS-MHyEIRo51w0Hmqi0C8h2KWNzDfo6F) - Kelas Terbuka
+* [Belajar Java OOP Bahasa Indonesia](https://www.youtube.com/playlist?list=PLiuHSY2x882bBLmmli1ly06MWZY-EOqX8) - Imam Farisi (YouTube)
 * [JAVA TUTORIAL - BAHASA INDONESIA](https://www.youtube.com/playlist?list=PL-CtdCApEFH-p_Q2GyK4K3ORoAT0Yt7CX) - Eko Kurniawan Khannedy, Programmer Zaman Now (YouTube)
 * [Memulai Pemrograman dengan Java](https://www.dicoding.com/academies/60) - Dicoding, membutuhkan registrasi
 
 
 #### Spring
 
+* [Belajar Spring Dasar Bahasa Indonesia](https://www.youtube.com/playlist?list=PLiuHSY2x882aeiESAgna5eVa_cOpFnxQm) - Imam Farisi (YouTube)
 * [Spring Framework and Spring Boot Tutorial (Project CRUD)](https://www.youtube.com/playlist?list=PLFfUPa9IV8Lp-Uognr1ALuqlKyxANO77x) - Mastahcode
 
 
@@ -317,6 +319,8 @@
 
 ### TypeScript
 
+* [Belajar Typescript Dasar Bahasa Indonesia](https://www.youtube.com/playlist?list=PLiuHSY2x882Z4NSJGNq0eB9Fz6tIx-CgO) - Imam Farisi (YouTube)
+* [Belajar Typescript OOP Bahasa Indonesia](https://www.youtube.com/playlist?list=PLiuHSY2x882a-sLbdqZTtraO3cl0Clwg0) - Imam Farisi (YouTube)
 * [Belajar TypeScript Untuk Pemula](https://www.youtube.com/playlist?list=PL-CtdCApEFH_LJt-fhYfMMgqxirSu6EKo) - Eko Kurniawan Khannedy, Programmer Zaman Now (YouTube)
 * [OOP TypeScript](https://www.youtube.com/playlist?list=PLnQvfeVegcJZRieebeIp0xj1NeC5L633Y) - Nusendra Hanggarawan (YouTube)
 * [TypeScript Dasar](https://www.youtube.com/playlist?list=PLnQvfeVegcJbjCnML6FdusK-rl-oDRMXJ) - Nusendra Hanggarawan (YouTube)