diff --git a/latex/chapters/02_literature_review.tex b/latex/chapters/02_literature_review.tex
index b7f0014..472af64 100644
--- a/latex/chapters/02_literature_review.tex
+++ b/latex/chapters/02_literature_review.tex
@@ -1,14 +1,7 @@
-\chapter{TINJAUAN PUSTAKA DAN LANDASAN TEORI}
-\section{Tinjauan Pustaka}
-
 \begin{figure}[!ht]
     \centering
     \includegraphics[width=0.5\linewidth]{frontmatter/img/slice1.jpg}
     \caption{Enter Caption}
     \label{fig:enter-label}
 \end{figure}
-
-\section{Dasar Teori}
-\subsection{Short-Time Fourier Transform}
-\subsection{Machine Learning}
 % \subsubsection{Dolor}
\ No newline at end of file
diff --git a/latex/chapters/id/02_literature_review/index.tex b/latex/chapters/id/02_literature_review/index.tex
index e69de29..885bacd 100644
--- a/latex/chapters/id/02_literature_review/index.tex
+++ b/latex/chapters/id/02_literature_review/index.tex
@@ -0,0 +1,7 @@
+\chapter{TINJAUAN PUSTAKA DAN LANDASAN TEORI}
+\section{Tinjauan Pustaka}
+\input{chapters/id/02_literature_review/abdeljaber2017.tex}
+
+\section{Dasar Teori}
+\input{chapters/id/theoritical_foundation/stft.tex}
+\input{chapters/id/theoritical_foundation/machine_learning.tex}
diff --git a/latex/chapters/id/02_literature_review/theoritical_foundation/machine_learning.tex b/latex/chapters/id/02_literature_review/theoritical_foundation/machine_learning.tex
index e69de29..fa80259 100644
--- a/latex/chapters/id/02_literature_review/theoritical_foundation/machine_learning.tex
+++ b/latex/chapters/id/02_literature_review/theoritical_foundation/machine_learning.tex
@@ -0,0 +1 @@
+\subsection{Machine Learning}
\ No newline at end of file
diff --git a/latex/chapters/id/02_literature_review/theoritical_foundation/stft.tex b/latex/chapters/id/02_literature_review/theoritical_foundation/stft.tex
index e69de29..889038c 100644
--- a/latex/chapters/id/02_literature_review/theoritical_foundation/stft.tex
+++ b/latex/chapters/id/02_literature_review/theoritical_foundation/stft.tex
@@ -0,0 +1 @@
+\subsection{Short-Time Fourier Transform}
\ No newline at end of file