Materi atau Bahan Ajar Kelas X Materi Vektor 1 https://www.youtube.com/watch?v=WhKb-RiZ-Cg&feature=youtu.be Materi Vektor 2 https://www.youtube.com/watch?v=o45wc3r4oJo&feature=youtu.be Materi Vektor 3 https://www.youtube.com/watch?v=wO5CzyxhPy0&feature=youtu.be