\documentclass[a5paper,11pt]{book}
\usepackage{program}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%KALKHULUQS%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}
\frontmatter
\include{Depan/1.Sampul}
\pagestyle{plain}
\pagenumbering{roman}
\setcounter{tocdepth}{2}
\include{Depan/2.Judul}
\include{Depan/3.Pengesahan}
\include{Depan/4.Pernyataan}
\include{Depan/5.Abstrak}
\include{Depan/6.Abstract}
\include{Depan/7.Pengantar}
\include{Depan/8.DaftarIsi}
\include{Depan/9.DaftarTabel}
\include{Depan/10.DaftarGambar}
\include{Depan/11.DaftarLampiran}
\include{Depan/12.DaftarSimbol}
%Penomoran Halaman
\fancyhf{}
\fancyhf[lef,rof]{\thepage}
\renewcommand{\headrulewidth}{0pt}
\pagestyle{fancy}
\fancypagestyle{plain}
{\fancyhf{}
\renewcommand{\headrulewidth}{0pt}
\fancyhf[lef,rof]{\thepage}}
%Format Judul BAB
\makeatletter
\renewcommand{\@makechapterhead}[1]{
\vspace*{1\p@}%
{\parindent \z@ \raggedright \normalfont \ifnum \c@secnumdepth >\m@ne
\if@mainmatter
\center \MakeUppercase{\vspace{-10pt}\normalsize\bfseries \@chapapp\space \thechapter}
%\chapapp\space memunculkan kata "Bab"
\par\nobreak
\vskip 1\p@ % Mengatur jarak antara "Bab 1" dan "Pendahuluan"
\fi
\fi
\interlinepenalty\@M
\normalsize \uppercase{\bfseries #1\par\nobreak} %Bagian ini memunculkan judul bab
\vskip 24\p@ % Mengatur jarak antara "Bab 1" dengan "Teks"
}}
\makeatother
\allowdisplaybreaks
\mainmatter
\pagenumbering{arabic}
\include{Isi/1.Pendahuluan}
\include{Isi/2.Teori}
\include{Isi/3.Metode}
\include{Isi/4.Pembahasan}
\include{Isi/5.Penutup}
\backmatter
\include{Belakang/1.Pustaka}
\include{Belakang/2.Lampiran}
\end{document}
